\u6700\u8fd1\u5728\u5b78\u7fd2 Ruby\uff0c\u7a0d\u5fae\u6d88\u5316\u4e00\u4e0b\u5df2\u7d93\u6574\u7406\u597d\u7684\u7b46\u8a18\uff0c\u5e0c\u671b\u751f\u51fa\u4e00\u7cfb\u5217\u6559\u5b78\u6587\uff01<\/p>\n\n\n\n
Table of Contents<\/p>\nToggle<\/span><\/path><\/svg><\/svg><\/span><\/span><\/label>1. \u4f7f\u7528 rbenv \u5b89\u88dd Ruby<\/a>1.1 \u5b89\u88dd rbenv<\/a><\/li>1.2 \u5b89\u88dd Ruby<\/a><\/li>1.3 \u8a2d\u5b9a Ruby \u7248\u672c<\/a><\/li><\/ul><\/li>2. VSCode \u74b0\u5883\u8a2d\u7f6e<\/a>2.1 Ruby<\/a><\/li>2.2 VSCode Ruby<\/a><\/li>2.3 Ruby Solargraph<\/a><\/li>2.4 endwise<\/a><\/li>2.5 Code Runner<\/a><\/li>2.6 \u5728 vscode \u57f7\u884c .rb<\/a><\/li><\/ul><\/li>3. Ruby \u4ecb\u7d39<\/a>3.1 \u52d5\u614b\u8a9e\u8a00<\/a><\/li>3.2 \u5f37\u578b\u5225<\/a><\/li>3.3 OOP<\/a><\/li><\/ul><\/li>4. \u53c3\u8003\u8cc7\u6599<\/a><\/li><\/ul><\/nav><\/div>\n<\/span>1. \u4f7f\u7528 rbenv \u5b89\u88dd Ruby<\/span><\/h2>\n\n\n\n<\/span>1.1 \u5b89\u88dd rbenv<\/span><\/h3>\n\n\n\nrbenv \u53ef\u4ee5\u7528\u4f86\u5b89\u88dd\u53ca\u7ba1\u7406\u5404\u7248\u672c\u7684 Ruby\u3002<\/p>\n\n\n\n$ brew install rbenv ruby-build<\/code><\/pre>\n\n\n\n\u5b89\u88dd\u5b8c rbenv \u5f8c\u9700\u8981\u521d\u59cb\u5316\uff1a<\/p>\n\n\n\n$ rbenv init<\/code><\/pre>\n\n\n\n\u4e00\u4e9b rbenv \u7684\u7b46\u8a18\uff1a<\/p>\n\n\n\n# \u5217\u51fa Ruby \u8fd1\u671f\u7684\u4e3b\u8981\u7248\u672c\n$ rbenv install -l\n\n# \u5217\u51fa\u6240\u6709 Ruby \u7248\u672c\n$ rbenv install -L<\/code><\/pre>\n\n\n\n<\/span>1.2 \u5b89\u88dd Ruby<\/span><\/h3>\n\n\n\n\u78ba\u5b9a\u597d\u8981\u5b89\u88dd\u7684\u7248\u672c\u5f8c\uff0c\u4f7f\u7528 rbenv \u5b89\u88dd Ruby<\/p>\n\n\n\n$ rbenv install 3.1.2<\/code><\/pre>\n\n\n\nrbenv \u53ef\u4ee5\u5728\u672c\u6a5f\u4e0a\u5b89\u88dd\u591a\u500b Ruby \u7248\u672c\uff0c\u53ef\u4ee5\u7528\u4ee5\u4e0b\u6307\u4ee4\u67e5\u770b\u76ee\u524d\u5df2\u7d93\u5b89\u88dd\u7684 Ruby \u7248\u672c\uff1a<\/p>\n\n\n\n$ rbenv versions<\/code><\/pre>\n\n\n\n<\/span>1.3 \u8a2d\u5b9a Ruby \u7248\u672c<\/span><\/h3>\n\n\n\n\u4e0b\u4e86 rbenv versions \u5f8c\u53ef\u4ee5\u770b\u5230\u672c\u6a5f\u53ef\u80fd\u4e0d\u53ea\u6709\u525b\u5b89\u88dd\u7684\u7248\u672c\uff0c\u9084\u6703\u6709\u7cfb\u7d71\u9810\u8a2d\u7684\u7248\u672c\uff0c\u56e0\u6b64\u9700\u8981\u6307\u5b9a\u7248\u672c\u70ba\u525b\u525b\u5b89\u88dd\u7684 Ruby \u7279\u5b9a\u7248\u672c\uff1a<\/p>\n\n\n\n$ rbenv global 3.1.2<\/code><\/pre>\n\n\n\n\u8a2d\u5b9a\u5b8c\u6210\u5f8c\u53ef\u4ee5\u7528\u4ee5\u4e0b\u6307\u4ee4\u78ba\u8a8d global \u7684\u7248\u672c\u662f\u5426\u70ba\u525b\u525b\u8a2d\u5b9a\u7684\u7248\u672c\uff1a<\/p>\n\n\n\n$ rbenv version\n3.1.2 (set by \/Users\/jimmy\/.rbenv\/version)<\/code><\/pre>\n\n\n\n\u540c\u6642\u4e5f\u8981\u78ba\u8a8d Ruby \u7684\u7248\u672c\uff1a<\/p>\n\n\n\n$ ruby -v\nruby 3.1.2p20 (2022-04-12 revision 4491bb740a) [arm64-darwin21]<\/code><\/pre>\n\n\n\n\u5982\u679c ruby -v \u7684\u7248\u672c\u548c global \u4e0d\u4e00\u6a23\uff0c\u52a0\u4ee5\u4e0b\u5169\u884c\u5230 ~\/.zshrc\n(\u5982\u679c shell \u662f\u4f7f\u7528 bash\uff0c\u5247\u52a0\u5230 ~\/.bashrc)\n export PATH=$HOME\/.rbenv\/bin:$PATH\n export PATH=$HOME\/.rbenv\/shims:$PATH<\/pre>\n\n\n\n<\/span>2. VSCode \u74b0\u5883\u8a2d\u7f6e<\/span><\/h2>\n\n\n\n\u500b\u4eba\u7fd2\u6163\u7528 vscode \u4f86\u5beb code\uff0c\u56e0\u6b64\u7c21\u55ae\u4ecb\u7d39\u4e00\u4e0b\u5beb Ruby \u6642\u53ef\u4ee5\u5b89\u88dd\u7684\u8f14\u52a9 plugin<\/p>\n\n\n\n<\/span>2.1 Ruby<\/span><\/h3>\n\n\n\nRuby \u7684\u8a9e\u8a00\u5305<\/p>\n\n\n\n\u5957\u4ef6\u9023\u7d50\uff1ahttps:\/\/marketplace.visualstudio.com\/items?itemName=rebornix.Ruby<\/a><\/p>\n\n\n\n<\/span>2.2 VSCode Ruby<\/span><\/h3>\n\n\n\n\u5728 .rb \u6a94\u4e2d highlight syntax<\/p>\n\n\n\n<\/a><\/figure><\/div>\n\n\n\n\u5957\u4ef6\u9023\u7d50\uff1ahttps:\/\/marketplace.visualstudio.com\/items?itemName=wingrunr21.vscode-ruby<\/a><\/p>\n\n\n\n<\/span>2.3 Ruby Solargraph<\/span><\/h3>\n\n\n\n\u5beb Ruby \u6642\u9019\u500b\u5957\u4ef6\u53ef\u4ee5\u652f\u63f4 auto complete<\/p>\n\n\n\n<\/a><\/figure><\/div>\n\n\n\n\u5957\u4ef6\u9023\u7d50\uff1ahttps:\/\/marketplace.visualstudio.com\/items?itemName=castwide.solargraph<\/a><\/p>\n\n\n\n<\/span>2.4 endwise<\/span><\/h3>\n\n\n\n\u5728 Ruby \u4e2d\uff0cmethod, loop, if \u7b49\u7b49\u90fd\u662f\u7528 end \u7d50\u5c3e\uff0c\u9019\u500b\u5957\u4ef6\u6703\u81ea\u52d5\u5e6b\u4f60\u52a0\u4e0a end\uff0c\u514d\u5f97\u5fd8\u8a18\u6253\u4e0a\u9020\u6210\u7de8\u8b6f\u932f\u8aa4\uff1a<\/p>\n\n\n\n<\/a><\/figure><\/div>\n\n\n\n\u5957\u4ef6\u9023\u7d50\uff1ahttps:\/\/marketplace.visualstudio.com\/items?itemName=kaiwood.endwise&ssr=false#overview<\/a><\/p>\n\n\n\n<\/span>2.5 Code Runner<\/span><\/h3>\n\n\n\nCode Runner \u5176\u5be6\u652f\u63f4\u8a31\u591a\u8a9e\u8a00\uff0cRuby \u4e5f\u662f\u5176\u4e2d\u4e4b\u4e00\uff0c\u6211\u89ba\u5f97\u53ef\u4ee5\u7528\u5feb\u6377\u9375(control + option + N)\u5feb\u901f\u7de8\u8b6f Ruby \u6709\u6642\u5019\u6eff\u65b9\u4fbf\u7684<\/p>\n\n\n\n\u5957\u4ef6\u9023\u7d50\uff1ahttps:\/\/marketplace.visualstudio.com\/items?itemName=formulahendry.code-runner<\/a><\/p>\n\n\n\n<\/span>2.6 \u5728 vscode \u57f7\u884c .rb<\/span><\/h3>\n\n\n\n\u5728 vscode \u4e2d\u5beb\u5b8c code \u5f8c\uff0c\u53ef\u4ee5\u76f4\u63a5\u5728 terminal \u7de8\u8b6f\u6a94\u6848\u5f97\u5230\u7d50\u679c\uff1a<\/p>\n\n\n\n# hello-world.rb\nstr = \"Hello World\"\np str<\/code><\/pre>\n\n\n\n\u5728 terminal \u4e2d\u57f7\u884c\uff1a<\/p>\n\n\n\n$ ruby hello-world.rb\n\"Hello World\"<\/code><\/pre>\n\n\n\n\u5c31\u6703\u57f7\u884c\u9019\u500b .rb \u6a94<\/p>\n\n\n\n<\/span>3. Ruby \u4ecb\u7d39<\/span><\/h2>\n\n\n\n<\/span>3.1 \u52d5\u614b\u8a9e\u8a00<\/span><\/h3>\n\n\n\nRuby \u662f\u52d5\u614b\u8a9e\u8a00\uff0c\u4e0d\u9700\u4e8b\u5148\u5b9a\u7fa9\u8b8a\u6578\u7684\u578b\u5225\uff1a<\/p>\n\n\n\nstr = \"Hello World!\"\nnumber = 123<\/code><\/pre>\n\n\n\n<\/span>3.2 \u5f37\u578b\u5225<\/span><\/h3>\n\n\n\n\u548c JavaScript \u4e0d\u540c\uff0cRuby \u662f\u5f37\u578b\u5225\u8a9e\u8a00\uff0c\u4e5f\u5c31\u662f\u8aaa\u7576\u5169\u500b\u8b8a\u6578\u578b\u5225\u4e0d\u540c\u6642\u76f8\u52a0 Ruby \u6703\u5831\u932f\uff1a<\/p>\n\n\n\nstr1 = \"Hello \"\nstr2 = \"World\"\np str1 + str2\n# \"Hello World!\"\n\nnumber = 123\np str1 + number\n# Error! no implicit conversion of Integer into String (TypeError)<\/code><\/pre>\n\n\n\n<\/span>3.3 OOP<\/span><\/h3>\n\n\n\nRuby \u662f OOP – Object-Oriented Programming \u7269\u4ef6\u5c0e\u5411\u7684\u7a0b\u5f0f\u8a9e\u8a00\uff0c\u4e5f\u5c31\u662f\u8aaa\u5728 Ruby \u7684\u4e16\u754c\u4e2d\uff0c\u5e7e\u4e4e\u6240\u6709\u7684\u6771\u897f\u90fd\u7531 object \u69cb\u6210\uff0c\u53ef\u4ee5\u5f9e\u6bcf\u500b object \u7684 .class \u5f97\u77e5\u9019\u500b object \u662f\u7531\u54ea\u500b class new \u51fa\u4f86\u7684\uff1a<\/p>\n\n\n\np \"Hello\".class\n# String\n\np 123.class\n# Integer\n\np [].class\n# Array<\/code><\/pre>\n\n\n\n<\/span>4. \u53c3\u8003\u8cc7\u6599<\/span><\/h2>\n\n\n\nRuby Programming Language \u4e2d\u6587\u5b98\u65b9\u7db2\u9801<\/a>Day 22: \u4f7f\u7528 VS Code \u4f86\u958b\u767c Ruby & Rails<\/a>Learn to Code with Ruby<\/a><\/p>\n\n\n\n\n\n\u5982\u679c\u89ba\u5f97\u6211\u7684\u6587\u7ae0\u6709\u5e6b\u52a9\u7684\u8a71\uff0c\u6b61\u8fce\u5e6b\u6211\u7684\u7c89\u5c08\u6309\u8b9a\u54e6~\u8b1d\u8b1d\u4f60\uff01<\/p>\n\n<\/iframe>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6700\u8fd1\u5728\u5b78\u7fd2 Ruby\uff0c\u7a0d\u5fae\u6d88\u5316\u4e00\u4e0b\u5df2\u7d93\u6574\u7406\u597d\u7684\u7b46\u8a18\uff0c\u5e0c\u671b\u751f\u51fa\u4e00\u7cfb\u5217\u6559\u5b78\u6587\uff01<\/p>\n","protected":false},"author":1,"featured_media":2606,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[184,90],"tags":[186],"_links":{"self":[{"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/posts\/2598"}],"collection":[{"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/comments?post=2598"}],"version-history":[{"count":7,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/posts\/2598\/revisions"}],"predecessor-version":[{"id":2622,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/posts\/2598\/revisions\/2622"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/media\/2606"}],"wp:attachment":[{"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/media?parent=2598"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/categories?post=2598"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/tags?post=2598"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
rbenv \u53ef\u4ee5\u7528\u4f86\u5b89\u88dd\u53ca\u7ba1\u7406\u5404\u7248\u672c\u7684 Ruby\u3002<\/p>\n\n\n\n
$ brew install rbenv ruby-build<\/code><\/pre>\n\n\n\n\u5b89\u88dd\u5b8c rbenv \u5f8c\u9700\u8981\u521d\u59cb\u5316\uff1a<\/p>\n\n\n\n$ rbenv init<\/code><\/pre>\n\n\n\n\u4e00\u4e9b rbenv \u7684\u7b46\u8a18\uff1a<\/p>\n\n\n\n# \u5217\u51fa Ruby \u8fd1\u671f\u7684\u4e3b\u8981\u7248\u672c\n$ rbenv install -l\n\n# \u5217\u51fa\u6240\u6709 Ruby \u7248\u672c\n$ rbenv install -L<\/code><\/pre>\n\n\n\n<\/span>1.2 \u5b89\u88dd Ruby<\/span><\/h3>\n\n\n\n\u78ba\u5b9a\u597d\u8981\u5b89\u88dd\u7684\u7248\u672c\u5f8c\uff0c\u4f7f\u7528 rbenv \u5b89\u88dd Ruby<\/p>\n\n\n\n$ rbenv install 3.1.2<\/code><\/pre>\n\n\n\nrbenv \u53ef\u4ee5\u5728\u672c\u6a5f\u4e0a\u5b89\u88dd\u591a\u500b Ruby \u7248\u672c\uff0c\u53ef\u4ee5\u7528\u4ee5\u4e0b\u6307\u4ee4\u67e5\u770b\u76ee\u524d\u5df2\u7d93\u5b89\u88dd\u7684 Ruby \u7248\u672c\uff1a<\/p>\n\n\n\n$ rbenv versions<\/code><\/pre>\n\n\n\n<\/span>1.3 \u8a2d\u5b9a Ruby \u7248\u672c<\/span><\/h3>\n\n\n\n\u4e0b\u4e86 rbenv versions \u5f8c\u53ef\u4ee5\u770b\u5230\u672c\u6a5f\u53ef\u80fd\u4e0d\u53ea\u6709\u525b\u5b89\u88dd\u7684\u7248\u672c\uff0c\u9084\u6703\u6709\u7cfb\u7d71\u9810\u8a2d\u7684\u7248\u672c\uff0c\u56e0\u6b64\u9700\u8981\u6307\u5b9a\u7248\u672c\u70ba\u525b\u525b\u5b89\u88dd\u7684 Ruby \u7279\u5b9a\u7248\u672c\uff1a<\/p>\n\n\n\n$ rbenv global 3.1.2<\/code><\/pre>\n\n\n\n\u8a2d\u5b9a\u5b8c\u6210\u5f8c\u53ef\u4ee5\u7528\u4ee5\u4e0b\u6307\u4ee4\u78ba\u8a8d global \u7684\u7248\u672c\u662f\u5426\u70ba\u525b\u525b\u8a2d\u5b9a\u7684\u7248\u672c\uff1a<\/p>\n\n\n\n$ rbenv version\n3.1.2 (set by \/Users\/jimmy\/.rbenv\/version)<\/code><\/pre>\n\n\n\n\u540c\u6642\u4e5f\u8981\u78ba\u8a8d Ruby \u7684\u7248\u672c\uff1a<\/p>\n\n\n\n$ ruby -v\nruby 3.1.2p20 (2022-04-12 revision 4491bb740a) [arm64-darwin21]<\/code><\/pre>\n\n\n\n\u5982\u679c ruby -v \u7684\u7248\u672c\u548c global \u4e0d\u4e00\u6a23\uff0c\u52a0\u4ee5\u4e0b\u5169\u884c\u5230 ~\/.zshrc\n(\u5982\u679c shell \u662f\u4f7f\u7528 bash\uff0c\u5247\u52a0\u5230 ~\/.bashrc)\n export PATH=$HOME\/.rbenv\/bin:$PATH\n export PATH=$HOME\/.rbenv\/shims:$PATH<\/pre>\n\n\n\n<\/span>2. VSCode \u74b0\u5883\u8a2d\u7f6e<\/span><\/h2>\n\n\n\n\u500b\u4eba\u7fd2\u6163\u7528 vscode \u4f86\u5beb code\uff0c\u56e0\u6b64\u7c21\u55ae\u4ecb\u7d39\u4e00\u4e0b\u5beb Ruby \u6642\u53ef\u4ee5\u5b89\u88dd\u7684\u8f14\u52a9 plugin<\/p>\n\n\n\n<\/span>2.1 Ruby<\/span><\/h3>\n\n\n\nRuby \u7684\u8a9e\u8a00\u5305<\/p>\n\n\n\n\u5957\u4ef6\u9023\u7d50\uff1ahttps:\/\/marketplace.visualstudio.com\/items?itemName=rebornix.Ruby<\/a><\/p>\n\n\n\n<\/span>2.2 VSCode Ruby<\/span><\/h3>\n\n\n\n\u5728 .rb \u6a94\u4e2d highlight syntax<\/p>\n\n\n\n<\/a><\/figure><\/div>\n\n\n\n\u5957\u4ef6\u9023\u7d50\uff1ahttps:\/\/marketplace.visualstudio.com\/items?itemName=wingrunr21.vscode-ruby<\/a><\/p>\n\n\n\n<\/span>2.3 Ruby Solargraph<\/span><\/h3>\n\n\n\n\u5beb Ruby \u6642\u9019\u500b\u5957\u4ef6\u53ef\u4ee5\u652f\u63f4 auto complete<\/p>\n\n\n\n<\/a><\/figure><\/div>\n\n\n\n\u5957\u4ef6\u9023\u7d50\uff1ahttps:\/\/marketplace.visualstudio.com\/items?itemName=castwide.solargraph<\/a><\/p>\n\n\n\n<\/span>2.4 endwise<\/span><\/h3>\n\n\n\n\u5728 Ruby \u4e2d\uff0cmethod, loop, if \u7b49\u7b49\u90fd\u662f\u7528 end \u7d50\u5c3e\uff0c\u9019\u500b\u5957\u4ef6\u6703\u81ea\u52d5\u5e6b\u4f60\u52a0\u4e0a end\uff0c\u514d\u5f97\u5fd8\u8a18\u6253\u4e0a\u9020\u6210\u7de8\u8b6f\u932f\u8aa4\uff1a<\/p>\n\n\n\n<\/a><\/figure><\/div>\n\n\n\n\u5957\u4ef6\u9023\u7d50\uff1ahttps:\/\/marketplace.visualstudio.com\/items?itemName=kaiwood.endwise&ssr=false#overview<\/a><\/p>\n\n\n\n<\/span>2.5 Code Runner<\/span><\/h3>\n\n\n\nCode Runner \u5176\u5be6\u652f\u63f4\u8a31\u591a\u8a9e\u8a00\uff0cRuby \u4e5f\u662f\u5176\u4e2d\u4e4b\u4e00\uff0c\u6211\u89ba\u5f97\u53ef\u4ee5\u7528\u5feb\u6377\u9375(control + option + N)\u5feb\u901f\u7de8\u8b6f Ruby \u6709\u6642\u5019\u6eff\u65b9\u4fbf\u7684<\/p>\n\n\n\n\u5957\u4ef6\u9023\u7d50\uff1ahttps:\/\/marketplace.visualstudio.com\/items?itemName=formulahendry.code-runner<\/a><\/p>\n\n\n\n<\/span>2.6 \u5728 vscode \u57f7\u884c .rb<\/span><\/h3>\n\n\n\n\u5728 vscode \u4e2d\u5beb\u5b8c code \u5f8c\uff0c\u53ef\u4ee5\u76f4\u63a5\u5728 terminal \u7de8\u8b6f\u6a94\u6848\u5f97\u5230\u7d50\u679c\uff1a<\/p>\n\n\n\n# hello-world.rb\nstr = \"Hello World\"\np str<\/code><\/pre>\n\n\n\n\u5728 terminal \u4e2d\u57f7\u884c\uff1a<\/p>\n\n\n\n$ ruby hello-world.rb\n\"Hello World\"<\/code><\/pre>\n\n\n\n\u5c31\u6703\u57f7\u884c\u9019\u500b .rb \u6a94<\/p>\n\n\n\n<\/span>3. Ruby \u4ecb\u7d39<\/span><\/h2>\n\n\n\n<\/span>3.1 \u52d5\u614b\u8a9e\u8a00<\/span><\/h3>\n\n\n\nRuby \u662f\u52d5\u614b\u8a9e\u8a00\uff0c\u4e0d\u9700\u4e8b\u5148\u5b9a\u7fa9\u8b8a\u6578\u7684\u578b\u5225\uff1a<\/p>\n\n\n\nstr = \"Hello World!\"\nnumber = 123<\/code><\/pre>\n\n\n\n<\/span>3.2 \u5f37\u578b\u5225<\/span><\/h3>\n\n\n\n\u548c JavaScript \u4e0d\u540c\uff0cRuby \u662f\u5f37\u578b\u5225\u8a9e\u8a00\uff0c\u4e5f\u5c31\u662f\u8aaa\u7576\u5169\u500b\u8b8a\u6578\u578b\u5225\u4e0d\u540c\u6642\u76f8\u52a0 Ruby \u6703\u5831\u932f\uff1a<\/p>\n\n\n\nstr1 = \"Hello \"\nstr2 = \"World\"\np str1 + str2\n# \"Hello World!\"\n\nnumber = 123\np str1 + number\n# Error! no implicit conversion of Integer into String (TypeError)<\/code><\/pre>\n\n\n\n<\/span>3.3 OOP<\/span><\/h3>\n\n\n\nRuby \u662f OOP – Object-Oriented Programming \u7269\u4ef6\u5c0e\u5411\u7684\u7a0b\u5f0f\u8a9e\u8a00\uff0c\u4e5f\u5c31\u662f\u8aaa\u5728 Ruby \u7684\u4e16\u754c\u4e2d\uff0c\u5e7e\u4e4e\u6240\u6709\u7684\u6771\u897f\u90fd\u7531 object \u69cb\u6210\uff0c\u53ef\u4ee5\u5f9e\u6bcf\u500b object \u7684 .class \u5f97\u77e5\u9019\u500b object \u662f\u7531\u54ea\u500b class new \u51fa\u4f86\u7684\uff1a<\/p>\n\n\n\np \"Hello\".class\n# String\n\np 123.class\n# Integer\n\np [].class\n# Array<\/code><\/pre>\n\n\n\n<\/span>4. \u53c3\u8003\u8cc7\u6599<\/span><\/h2>\n\n\n\nRuby Programming Language \u4e2d\u6587\u5b98\u65b9\u7db2\u9801<\/a>Day 22: \u4f7f\u7528 VS Code \u4f86\u958b\u767c Ruby & Rails<\/a>Learn to Code with Ruby<\/a><\/p>\n\n\n\n\n\n\u5982\u679c\u89ba\u5f97\u6211\u7684\u6587\u7ae0\u6709\u5e6b\u52a9\u7684\u8a71\uff0c\u6b61\u8fce\u5e6b\u6211\u7684\u7c89\u5c08\u6309\u8b9a\u54e6~\u8b1d\u8b1d\u4f60\uff01<\/p>\n\n<\/iframe>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6700\u8fd1\u5728\u5b78\u7fd2 Ruby\uff0c\u7a0d\u5fae\u6d88\u5316\u4e00\u4e0b\u5df2\u7d93\u6574\u7406\u597d\u7684\u7b46\u8a18\uff0c\u5e0c\u671b\u751f\u51fa\u4e00\u7cfb\u5217\u6559\u5b78\u6587\uff01<\/p>\n","protected":false},"author":1,"featured_media":2606,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[184,90],"tags":[186],"_links":{"self":[{"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/posts\/2598"}],"collection":[{"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/comments?post=2598"}],"version-history":[{"count":7,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/posts\/2598\/revisions"}],"predecessor-version":[{"id":2622,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/posts\/2598\/revisions\/2622"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/media\/2606"}],"wp:attachment":[{"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/media?parent=2598"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/categories?post=2598"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/tags?post=2598"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
\u5b89\u88dd\u5b8c rbenv \u5f8c\u9700\u8981\u521d\u59cb\u5316\uff1a<\/p>\n\n\n\n
$ rbenv init<\/code><\/pre>\n\n\n\n\u4e00\u4e9b rbenv \u7684\u7b46\u8a18\uff1a<\/p>\n\n\n\n# \u5217\u51fa Ruby \u8fd1\u671f\u7684\u4e3b\u8981\u7248\u672c\n$ rbenv install -l\n\n# \u5217\u51fa\u6240\u6709 Ruby \u7248\u672c\n$ rbenv install -L<\/code><\/pre>\n\n\n\n<\/span>1.2 \u5b89\u88dd Ruby<\/span><\/h3>\n\n\n\n\u78ba\u5b9a\u597d\u8981\u5b89\u88dd\u7684\u7248\u672c\u5f8c\uff0c\u4f7f\u7528 rbenv \u5b89\u88dd Ruby<\/p>\n\n\n\n$ rbenv install 3.1.2<\/code><\/pre>\n\n\n\nrbenv \u53ef\u4ee5\u5728\u672c\u6a5f\u4e0a\u5b89\u88dd\u591a\u500b Ruby \u7248\u672c\uff0c\u53ef\u4ee5\u7528\u4ee5\u4e0b\u6307\u4ee4\u67e5\u770b\u76ee\u524d\u5df2\u7d93\u5b89\u88dd\u7684 Ruby \u7248\u672c\uff1a<\/p>\n\n\n\n$ rbenv versions<\/code><\/pre>\n\n\n\n<\/span>1.3 \u8a2d\u5b9a Ruby \u7248\u672c<\/span><\/h3>\n\n\n\n\u4e0b\u4e86 rbenv versions \u5f8c\u53ef\u4ee5\u770b\u5230\u672c\u6a5f\u53ef\u80fd\u4e0d\u53ea\u6709\u525b\u5b89\u88dd\u7684\u7248\u672c\uff0c\u9084\u6703\u6709\u7cfb\u7d71\u9810\u8a2d\u7684\u7248\u672c\uff0c\u56e0\u6b64\u9700\u8981\u6307\u5b9a\u7248\u672c\u70ba\u525b\u525b\u5b89\u88dd\u7684 Ruby \u7279\u5b9a\u7248\u672c\uff1a<\/p>\n\n\n\n$ rbenv global 3.1.2<\/code><\/pre>\n\n\n\n\u8a2d\u5b9a\u5b8c\u6210\u5f8c\u53ef\u4ee5\u7528\u4ee5\u4e0b\u6307\u4ee4\u78ba\u8a8d global \u7684\u7248\u672c\u662f\u5426\u70ba\u525b\u525b\u8a2d\u5b9a\u7684\u7248\u672c\uff1a<\/p>\n\n\n\n$ rbenv version\n3.1.2 (set by \/Users\/jimmy\/.rbenv\/version)<\/code><\/pre>\n\n\n\n\u540c\u6642\u4e5f\u8981\u78ba\u8a8d Ruby \u7684\u7248\u672c\uff1a<\/p>\n\n\n\n$ ruby -v\nruby 3.1.2p20 (2022-04-12 revision 4491bb740a) [arm64-darwin21]<\/code><\/pre>\n\n\n\n\u5982\u679c ruby -v \u7684\u7248\u672c\u548c global \u4e0d\u4e00\u6a23\uff0c\u52a0\u4ee5\u4e0b\u5169\u884c\u5230 ~\/.zshrc\n(\u5982\u679c shell \u662f\u4f7f\u7528 bash\uff0c\u5247\u52a0\u5230 ~\/.bashrc)\n export PATH=$HOME\/.rbenv\/bin:$PATH\n export PATH=$HOME\/.rbenv\/shims:$PATH<\/pre>\n\n\n\n<\/span>2. VSCode \u74b0\u5883\u8a2d\u7f6e<\/span><\/h2>\n\n\n\n\u500b\u4eba\u7fd2\u6163\u7528 vscode \u4f86\u5beb code\uff0c\u56e0\u6b64\u7c21\u55ae\u4ecb\u7d39\u4e00\u4e0b\u5beb Ruby \u6642\u53ef\u4ee5\u5b89\u88dd\u7684\u8f14\u52a9 plugin<\/p>\n\n\n\n<\/span>2.1 Ruby<\/span><\/h3>\n\n\n\nRuby \u7684\u8a9e\u8a00\u5305<\/p>\n\n\n\n\u5957\u4ef6\u9023\u7d50\uff1ahttps:\/\/marketplace.visualstudio.com\/items?itemName=rebornix.Ruby<\/a><\/p>\n\n\n\n<\/span>2.2 VSCode Ruby<\/span><\/h3>\n\n\n\n\u5728 .rb \u6a94\u4e2d highlight syntax<\/p>\n\n\n\n<\/a><\/figure><\/div>\n\n\n\n\u5957\u4ef6\u9023\u7d50\uff1ahttps:\/\/marketplace.visualstudio.com\/items?itemName=wingrunr21.vscode-ruby<\/a><\/p>\n\n\n\n<\/span>2.3 Ruby Solargraph<\/span><\/h3>\n\n\n\n\u5beb Ruby \u6642\u9019\u500b\u5957\u4ef6\u53ef\u4ee5\u652f\u63f4 auto complete<\/p>\n\n\n\n<\/a><\/figure><\/div>\n\n\n\n\u5957\u4ef6\u9023\u7d50\uff1ahttps:\/\/marketplace.visualstudio.com\/items?itemName=castwide.solargraph<\/a><\/p>\n\n\n\n<\/span>2.4 endwise<\/span><\/h3>\n\n\n\n\u5728 Ruby \u4e2d\uff0cmethod, loop, if \u7b49\u7b49\u90fd\u662f\u7528 end \u7d50\u5c3e\uff0c\u9019\u500b\u5957\u4ef6\u6703\u81ea\u52d5\u5e6b\u4f60\u52a0\u4e0a end\uff0c\u514d\u5f97\u5fd8\u8a18\u6253\u4e0a\u9020\u6210\u7de8\u8b6f\u932f\u8aa4\uff1a<\/p>\n\n\n\n<\/a><\/figure><\/div>\n\n\n\n\u5957\u4ef6\u9023\u7d50\uff1ahttps:\/\/marketplace.visualstudio.com\/items?itemName=kaiwood.endwise&ssr=false#overview<\/a><\/p>\n\n\n\n<\/span>2.5 Code Runner<\/span><\/h3>\n\n\n\nCode Runner \u5176\u5be6\u652f\u63f4\u8a31\u591a\u8a9e\u8a00\uff0cRuby \u4e5f\u662f\u5176\u4e2d\u4e4b\u4e00\uff0c\u6211\u89ba\u5f97\u53ef\u4ee5\u7528\u5feb\u6377\u9375(control + option + N)\u5feb\u901f\u7de8\u8b6f Ruby \u6709\u6642\u5019\u6eff\u65b9\u4fbf\u7684<\/p>\n\n\n\n\u5957\u4ef6\u9023\u7d50\uff1ahttps:\/\/marketplace.visualstudio.com\/items?itemName=formulahendry.code-runner<\/a><\/p>\n\n\n\n<\/span>2.6 \u5728 vscode \u57f7\u884c .rb<\/span><\/h3>\n\n\n\n\u5728 vscode \u4e2d\u5beb\u5b8c code \u5f8c\uff0c\u53ef\u4ee5\u76f4\u63a5\u5728 terminal \u7de8\u8b6f\u6a94\u6848\u5f97\u5230\u7d50\u679c\uff1a<\/p>\n\n\n\n# hello-world.rb\nstr = \"Hello World\"\np str<\/code><\/pre>\n\n\n\n\u5728 terminal \u4e2d\u57f7\u884c\uff1a<\/p>\n\n\n\n$ ruby hello-world.rb\n\"Hello World\"<\/code><\/pre>\n\n\n\n\u5c31\u6703\u57f7\u884c\u9019\u500b .rb \u6a94<\/p>\n\n\n\n<\/span>3. Ruby \u4ecb\u7d39<\/span><\/h2>\n\n\n\n<\/span>3.1 \u52d5\u614b\u8a9e\u8a00<\/span><\/h3>\n\n\n\nRuby \u662f\u52d5\u614b\u8a9e\u8a00\uff0c\u4e0d\u9700\u4e8b\u5148\u5b9a\u7fa9\u8b8a\u6578\u7684\u578b\u5225\uff1a<\/p>\n\n\n\nstr = \"Hello World!\"\nnumber = 123<\/code><\/pre>\n\n\n\n<\/span>3.2 \u5f37\u578b\u5225<\/span><\/h3>\n\n\n\n\u548c JavaScript \u4e0d\u540c\uff0cRuby \u662f\u5f37\u578b\u5225\u8a9e\u8a00\uff0c\u4e5f\u5c31\u662f\u8aaa\u7576\u5169\u500b\u8b8a\u6578\u578b\u5225\u4e0d\u540c\u6642\u76f8\u52a0 Ruby \u6703\u5831\u932f\uff1a<\/p>\n\n\n\nstr1 = \"Hello \"\nstr2 = \"World\"\np str1 + str2\n# \"Hello World!\"\n\nnumber = 123\np str1 + number\n# Error! no implicit conversion of Integer into String (TypeError)<\/code><\/pre>\n\n\n\n<\/span>3.3 OOP<\/span><\/h3>\n\n\n\nRuby \u662f OOP – Object-Oriented Programming \u7269\u4ef6\u5c0e\u5411\u7684\u7a0b\u5f0f\u8a9e\u8a00\uff0c\u4e5f\u5c31\u662f\u8aaa\u5728 Ruby \u7684\u4e16\u754c\u4e2d\uff0c\u5e7e\u4e4e\u6240\u6709\u7684\u6771\u897f\u90fd\u7531 object \u69cb\u6210\uff0c\u53ef\u4ee5\u5f9e\u6bcf\u500b object \u7684 .class \u5f97\u77e5\u9019\u500b object \u662f\u7531\u54ea\u500b class new \u51fa\u4f86\u7684\uff1a<\/p>\n\n\n\np \"Hello\".class\n# String\n\np 123.class\n# Integer\n\np [].class\n# Array<\/code><\/pre>\n\n\n\n<\/span>4. \u53c3\u8003\u8cc7\u6599<\/span><\/h2>\n\n\n\nRuby Programming Language \u4e2d\u6587\u5b98\u65b9\u7db2\u9801<\/a>Day 22: \u4f7f\u7528 VS Code \u4f86\u958b\u767c Ruby & Rails<\/a>Learn to Code with Ruby<\/a><\/p>\n\n\n\n\n\n\u5982\u679c\u89ba\u5f97\u6211\u7684\u6587\u7ae0\u6709\u5e6b\u52a9\u7684\u8a71\uff0c\u6b61\u8fce\u5e6b\u6211\u7684\u7c89\u5c08\u6309\u8b9a\u54e6~\u8b1d\u8b1d\u4f60\uff01<\/p>\n\n<\/iframe>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6700\u8fd1\u5728\u5b78\u7fd2 Ruby\uff0c\u7a0d\u5fae\u6d88\u5316\u4e00\u4e0b\u5df2\u7d93\u6574\u7406\u597d\u7684\u7b46\u8a18\uff0c\u5e0c\u671b\u751f\u51fa\u4e00\u7cfb\u5217\u6559\u5b78\u6587\uff01<\/p>\n","protected":false},"author":1,"featured_media":2606,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[184,90],"tags":[186],"_links":{"self":[{"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/posts\/2598"}],"collection":[{"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/comments?post=2598"}],"version-history":[{"count":7,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/posts\/2598\/revisions"}],"predecessor-version":[{"id":2622,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/posts\/2598\/revisions\/2622"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/media\/2606"}],"wp:attachment":[{"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/media?parent=2598"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/categories?post=2598"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/tags?post=2598"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
\u4e00\u4e9b rbenv \u7684\u7b46\u8a18\uff1a<\/p>\n\n\n\n
# \u5217\u51fa Ruby \u8fd1\u671f\u7684\u4e3b\u8981\u7248\u672c\n$ rbenv install -l\n\n# \u5217\u51fa\u6240\u6709 Ruby \u7248\u672c\n$ rbenv install -L<\/code><\/pre>\n\n\n\n<\/span>1.2 \u5b89\u88dd Ruby<\/span><\/h3>\n\n\n\n\u78ba\u5b9a\u597d\u8981\u5b89\u88dd\u7684\u7248\u672c\u5f8c\uff0c\u4f7f\u7528 rbenv \u5b89\u88dd Ruby<\/p>\n\n\n\n$ rbenv install 3.1.2<\/code><\/pre>\n\n\n\nrbenv \u53ef\u4ee5\u5728\u672c\u6a5f\u4e0a\u5b89\u88dd\u591a\u500b Ruby \u7248\u672c\uff0c\u53ef\u4ee5\u7528\u4ee5\u4e0b\u6307\u4ee4\u67e5\u770b\u76ee\u524d\u5df2\u7d93\u5b89\u88dd\u7684 Ruby \u7248\u672c\uff1a<\/p>\n\n\n\n$ rbenv versions<\/code><\/pre>\n\n\n\n<\/span>1.3 \u8a2d\u5b9a Ruby \u7248\u672c<\/span><\/h3>\n\n\n\n\u4e0b\u4e86 rbenv versions \u5f8c\u53ef\u4ee5\u770b\u5230\u672c\u6a5f\u53ef\u80fd\u4e0d\u53ea\u6709\u525b\u5b89\u88dd\u7684\u7248\u672c\uff0c\u9084\u6703\u6709\u7cfb\u7d71\u9810\u8a2d\u7684\u7248\u672c\uff0c\u56e0\u6b64\u9700\u8981\u6307\u5b9a\u7248\u672c\u70ba\u525b\u525b\u5b89\u88dd\u7684 Ruby \u7279\u5b9a\u7248\u672c\uff1a<\/p>\n\n\n\n$ rbenv global 3.1.2<\/code><\/pre>\n\n\n\n\u8a2d\u5b9a\u5b8c\u6210\u5f8c\u53ef\u4ee5\u7528\u4ee5\u4e0b\u6307\u4ee4\u78ba\u8a8d global \u7684\u7248\u672c\u662f\u5426\u70ba\u525b\u525b\u8a2d\u5b9a\u7684\u7248\u672c\uff1a<\/p>\n\n\n\n$ rbenv version\n3.1.2 (set by \/Users\/jimmy\/.rbenv\/version)<\/code><\/pre>\n\n\n\n\u540c\u6642\u4e5f\u8981\u78ba\u8a8d Ruby \u7684\u7248\u672c\uff1a<\/p>\n\n\n\n$ ruby -v\nruby 3.1.2p20 (2022-04-12 revision 4491bb740a) [arm64-darwin21]<\/code><\/pre>\n\n\n\n\u5982\u679c ruby -v \u7684\u7248\u672c\u548c global \u4e0d\u4e00\u6a23\uff0c\u52a0\u4ee5\u4e0b\u5169\u884c\u5230 ~\/.zshrc\n(\u5982\u679c shell \u662f\u4f7f\u7528 bash\uff0c\u5247\u52a0\u5230 ~\/.bashrc)\n export PATH=$HOME\/.rbenv\/bin:$PATH\n export PATH=$HOME\/.rbenv\/shims:$PATH<\/pre>\n\n\n\n<\/span>2. VSCode \u74b0\u5883\u8a2d\u7f6e<\/span><\/h2>\n\n\n\n\u500b\u4eba\u7fd2\u6163\u7528 vscode \u4f86\u5beb code\uff0c\u56e0\u6b64\u7c21\u55ae\u4ecb\u7d39\u4e00\u4e0b\u5beb Ruby \u6642\u53ef\u4ee5\u5b89\u88dd\u7684\u8f14\u52a9 plugin<\/p>\n\n\n\n<\/span>2.1 Ruby<\/span><\/h3>\n\n\n\nRuby \u7684\u8a9e\u8a00\u5305<\/p>\n\n\n\n\u5957\u4ef6\u9023\u7d50\uff1ahttps:\/\/marketplace.visualstudio.com\/items?itemName=rebornix.Ruby<\/a><\/p>\n\n\n\n<\/span>2.2 VSCode Ruby<\/span><\/h3>\n\n\n\n\u5728 .rb \u6a94\u4e2d highlight syntax<\/p>\n\n\n\n<\/a><\/figure><\/div>\n\n\n\n\u5957\u4ef6\u9023\u7d50\uff1ahttps:\/\/marketplace.visualstudio.com\/items?itemName=wingrunr21.vscode-ruby<\/a><\/p>\n\n\n\n<\/span>2.3 Ruby Solargraph<\/span><\/h3>\n\n\n\n\u5beb Ruby \u6642\u9019\u500b\u5957\u4ef6\u53ef\u4ee5\u652f\u63f4 auto complete<\/p>\n\n\n\n<\/a><\/figure><\/div>\n\n\n\n\u5957\u4ef6\u9023\u7d50\uff1ahttps:\/\/marketplace.visualstudio.com\/items?itemName=castwide.solargraph<\/a><\/p>\n\n\n\n<\/span>2.4 endwise<\/span><\/h3>\n\n\n\n\u5728 Ruby \u4e2d\uff0cmethod, loop, if \u7b49\u7b49\u90fd\u662f\u7528 end \u7d50\u5c3e\uff0c\u9019\u500b\u5957\u4ef6\u6703\u81ea\u52d5\u5e6b\u4f60\u52a0\u4e0a end\uff0c\u514d\u5f97\u5fd8\u8a18\u6253\u4e0a\u9020\u6210\u7de8\u8b6f\u932f\u8aa4\uff1a<\/p>\n\n\n\n<\/a><\/figure><\/div>\n\n\n\n\u5957\u4ef6\u9023\u7d50\uff1ahttps:\/\/marketplace.visualstudio.com\/items?itemName=kaiwood.endwise&ssr=false#overview<\/a><\/p>\n\n\n\n<\/span>2.5 Code Runner<\/span><\/h3>\n\n\n\nCode Runner \u5176\u5be6\u652f\u63f4\u8a31\u591a\u8a9e\u8a00\uff0cRuby \u4e5f\u662f\u5176\u4e2d\u4e4b\u4e00\uff0c\u6211\u89ba\u5f97\u53ef\u4ee5\u7528\u5feb\u6377\u9375(control + option + N)\u5feb\u901f\u7de8\u8b6f Ruby \u6709\u6642\u5019\u6eff\u65b9\u4fbf\u7684<\/p>\n\n\n\n\u5957\u4ef6\u9023\u7d50\uff1ahttps:\/\/marketplace.visualstudio.com\/items?itemName=formulahendry.code-runner<\/a><\/p>\n\n\n\n<\/span>2.6 \u5728 vscode \u57f7\u884c .rb<\/span><\/h3>\n\n\n\n\u5728 vscode \u4e2d\u5beb\u5b8c code \u5f8c\uff0c\u53ef\u4ee5\u76f4\u63a5\u5728 terminal \u7de8\u8b6f\u6a94\u6848\u5f97\u5230\u7d50\u679c\uff1a<\/p>\n\n\n\n# hello-world.rb\nstr = \"Hello World\"\np str<\/code><\/pre>\n\n\n\n\u5728 terminal \u4e2d\u57f7\u884c\uff1a<\/p>\n\n\n\n$ ruby hello-world.rb\n\"Hello World\"<\/code><\/pre>\n\n\n\n\u5c31\u6703\u57f7\u884c\u9019\u500b .rb \u6a94<\/p>\n\n\n\n<\/span>3. Ruby \u4ecb\u7d39<\/span><\/h2>\n\n\n\n<\/span>3.1 \u52d5\u614b\u8a9e\u8a00<\/span><\/h3>\n\n\n\nRuby \u662f\u52d5\u614b\u8a9e\u8a00\uff0c\u4e0d\u9700\u4e8b\u5148\u5b9a\u7fa9\u8b8a\u6578\u7684\u578b\u5225\uff1a<\/p>\n\n\n\nstr = \"Hello World!\"\nnumber = 123<\/code><\/pre>\n\n\n\n<\/span>3.2 \u5f37\u578b\u5225<\/span><\/h3>\n\n\n\n\u548c JavaScript \u4e0d\u540c\uff0cRuby \u662f\u5f37\u578b\u5225\u8a9e\u8a00\uff0c\u4e5f\u5c31\u662f\u8aaa\u7576\u5169\u500b\u8b8a\u6578\u578b\u5225\u4e0d\u540c\u6642\u76f8\u52a0 Ruby \u6703\u5831\u932f\uff1a<\/p>\n\n\n\nstr1 = \"Hello \"\nstr2 = \"World\"\np str1 + str2\n# \"Hello World!\"\n\nnumber = 123\np str1 + number\n# Error! no implicit conversion of Integer into String (TypeError)<\/code><\/pre>\n\n\n\n<\/span>3.3 OOP<\/span><\/h3>\n\n\n\nRuby \u662f OOP – Object-Oriented Programming \u7269\u4ef6\u5c0e\u5411\u7684\u7a0b\u5f0f\u8a9e\u8a00\uff0c\u4e5f\u5c31\u662f\u8aaa\u5728 Ruby \u7684\u4e16\u754c\u4e2d\uff0c\u5e7e\u4e4e\u6240\u6709\u7684\u6771\u897f\u90fd\u7531 object \u69cb\u6210\uff0c\u53ef\u4ee5\u5f9e\u6bcf\u500b object \u7684 .class \u5f97\u77e5\u9019\u500b object \u662f\u7531\u54ea\u500b class new \u51fa\u4f86\u7684\uff1a<\/p>\n\n\n\np \"Hello\".class\n# String\n\np 123.class\n# Integer\n\np [].class\n# Array<\/code><\/pre>\n\n\n\n<\/span>4. \u53c3\u8003\u8cc7\u6599<\/span><\/h2>\n\n\n\nRuby Programming Language \u4e2d\u6587\u5b98\u65b9\u7db2\u9801<\/a>Day 22: \u4f7f\u7528 VS Code \u4f86\u958b\u767c Ruby & Rails<\/a>Learn to Code with Ruby<\/a><\/p>\n\n\n\n\n\n\u5982\u679c\u89ba\u5f97\u6211\u7684\u6587\u7ae0\u6709\u5e6b\u52a9\u7684\u8a71\uff0c\u6b61\u8fce\u5e6b\u6211\u7684\u7c89\u5c08\u6309\u8b9a\u54e6~\u8b1d\u8b1d\u4f60\uff01<\/p>\n\n<\/iframe>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6700\u8fd1\u5728\u5b78\u7fd2 Ruby\uff0c\u7a0d\u5fae\u6d88\u5316\u4e00\u4e0b\u5df2\u7d93\u6574\u7406\u597d\u7684\u7b46\u8a18\uff0c\u5e0c\u671b\u751f\u51fa\u4e00\u7cfb\u5217\u6559\u5b78\u6587\uff01<\/p>\n","protected":false},"author":1,"featured_media":2606,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[184,90],"tags":[186],"_links":{"self":[{"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/posts\/2598"}],"collection":[{"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/comments?post=2598"}],"version-history":[{"count":7,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/posts\/2598\/revisions"}],"predecessor-version":[{"id":2622,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/posts\/2598\/revisions\/2622"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/media\/2606"}],"wp:attachment":[{"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/media?parent=2598"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/categories?post=2598"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/tags?post=2598"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
\u78ba\u5b9a\u597d\u8981\u5b89\u88dd\u7684\u7248\u672c\u5f8c\uff0c\u4f7f\u7528 rbenv \u5b89\u88dd Ruby<\/p>\n\n\n\n
$ rbenv install 3.1.2<\/code><\/pre>\n\n\n\nrbenv \u53ef\u4ee5\u5728\u672c\u6a5f\u4e0a\u5b89\u88dd\u591a\u500b Ruby \u7248\u672c\uff0c\u53ef\u4ee5\u7528\u4ee5\u4e0b\u6307\u4ee4\u67e5\u770b\u76ee\u524d\u5df2\u7d93\u5b89\u88dd\u7684 Ruby \u7248\u672c\uff1a<\/p>\n\n\n\n$ rbenv versions<\/code><\/pre>\n\n\n\n<\/span>1.3 \u8a2d\u5b9a Ruby \u7248\u672c<\/span><\/h3>\n\n\n\n\u4e0b\u4e86 rbenv versions \u5f8c\u53ef\u4ee5\u770b\u5230\u672c\u6a5f\u53ef\u80fd\u4e0d\u53ea\u6709\u525b\u5b89\u88dd\u7684\u7248\u672c\uff0c\u9084\u6703\u6709\u7cfb\u7d71\u9810\u8a2d\u7684\u7248\u672c\uff0c\u56e0\u6b64\u9700\u8981\u6307\u5b9a\u7248\u672c\u70ba\u525b\u525b\u5b89\u88dd\u7684 Ruby \u7279\u5b9a\u7248\u672c\uff1a<\/p>\n\n\n\n$ rbenv global 3.1.2<\/code><\/pre>\n\n\n\n\u8a2d\u5b9a\u5b8c\u6210\u5f8c\u53ef\u4ee5\u7528\u4ee5\u4e0b\u6307\u4ee4\u78ba\u8a8d global \u7684\u7248\u672c\u662f\u5426\u70ba\u525b\u525b\u8a2d\u5b9a\u7684\u7248\u672c\uff1a<\/p>\n\n\n\n$ rbenv version\n3.1.2 (set by \/Users\/jimmy\/.rbenv\/version)<\/code><\/pre>\n\n\n\n\u540c\u6642\u4e5f\u8981\u78ba\u8a8d Ruby \u7684\u7248\u672c\uff1a<\/p>\n\n\n\n$ ruby -v\nruby 3.1.2p20 (2022-04-12 revision 4491bb740a) [arm64-darwin21]<\/code><\/pre>\n\n\n\n\u5982\u679c ruby -v \u7684\u7248\u672c\u548c global \u4e0d\u4e00\u6a23\uff0c\u52a0\u4ee5\u4e0b\u5169\u884c\u5230 ~\/.zshrc\n(\u5982\u679c shell \u662f\u4f7f\u7528 bash\uff0c\u5247\u52a0\u5230 ~\/.bashrc)\n export PATH=$HOME\/.rbenv\/bin:$PATH\n export PATH=$HOME\/.rbenv\/shims:$PATH<\/pre>\n\n\n\n<\/span>2. VSCode \u74b0\u5883\u8a2d\u7f6e<\/span><\/h2>\n\n\n\n\u500b\u4eba\u7fd2\u6163\u7528 vscode \u4f86\u5beb code\uff0c\u56e0\u6b64\u7c21\u55ae\u4ecb\u7d39\u4e00\u4e0b\u5beb Ruby \u6642\u53ef\u4ee5\u5b89\u88dd\u7684\u8f14\u52a9 plugin<\/p>\n\n\n\n<\/span>2.1 Ruby<\/span><\/h3>\n\n\n\nRuby \u7684\u8a9e\u8a00\u5305<\/p>\n\n\n\n\u5957\u4ef6\u9023\u7d50\uff1ahttps:\/\/marketplace.visualstudio.com\/items?itemName=rebornix.Ruby<\/a><\/p>\n\n\n\n<\/span>2.2 VSCode Ruby<\/span><\/h3>\n\n\n\n\u5728 .rb \u6a94\u4e2d highlight syntax<\/p>\n\n\n\n<\/a><\/figure><\/div>\n\n\n\n\u5957\u4ef6\u9023\u7d50\uff1ahttps:\/\/marketplace.visualstudio.com\/items?itemName=wingrunr21.vscode-ruby<\/a><\/p>\n\n\n\n<\/span>2.3 Ruby Solargraph<\/span><\/h3>\n\n\n\n\u5beb Ruby \u6642\u9019\u500b\u5957\u4ef6\u53ef\u4ee5\u652f\u63f4 auto complete<\/p>\n\n\n\n<\/a><\/figure><\/div>\n\n\n\n\u5957\u4ef6\u9023\u7d50\uff1ahttps:\/\/marketplace.visualstudio.com\/items?itemName=castwide.solargraph<\/a><\/p>\n\n\n\n<\/span>2.4 endwise<\/span><\/h3>\n\n\n\n\u5728 Ruby \u4e2d\uff0cmethod, loop, if \u7b49\u7b49\u90fd\u662f\u7528 end \u7d50\u5c3e\uff0c\u9019\u500b\u5957\u4ef6\u6703\u81ea\u52d5\u5e6b\u4f60\u52a0\u4e0a end\uff0c\u514d\u5f97\u5fd8\u8a18\u6253\u4e0a\u9020\u6210\u7de8\u8b6f\u932f\u8aa4\uff1a<\/p>\n\n\n\n<\/a><\/figure><\/div>\n\n\n\n\u5957\u4ef6\u9023\u7d50\uff1ahttps:\/\/marketplace.visualstudio.com\/items?itemName=kaiwood.endwise&ssr=false#overview<\/a><\/p>\n\n\n\n<\/span>2.5 Code Runner<\/span><\/h3>\n\n\n\nCode Runner \u5176\u5be6\u652f\u63f4\u8a31\u591a\u8a9e\u8a00\uff0cRuby \u4e5f\u662f\u5176\u4e2d\u4e4b\u4e00\uff0c\u6211\u89ba\u5f97\u53ef\u4ee5\u7528\u5feb\u6377\u9375(control + option + N)\u5feb\u901f\u7de8\u8b6f Ruby \u6709\u6642\u5019\u6eff\u65b9\u4fbf\u7684<\/p>\n\n\n\n\u5957\u4ef6\u9023\u7d50\uff1ahttps:\/\/marketplace.visualstudio.com\/items?itemName=formulahendry.code-runner<\/a><\/p>\n\n\n\n<\/span>2.6 \u5728 vscode \u57f7\u884c .rb<\/span><\/h3>\n\n\n\n\u5728 vscode \u4e2d\u5beb\u5b8c code \u5f8c\uff0c\u53ef\u4ee5\u76f4\u63a5\u5728 terminal \u7de8\u8b6f\u6a94\u6848\u5f97\u5230\u7d50\u679c\uff1a<\/p>\n\n\n\n# hello-world.rb\nstr = \"Hello World\"\np str<\/code><\/pre>\n\n\n\n\u5728 terminal \u4e2d\u57f7\u884c\uff1a<\/p>\n\n\n\n$ ruby hello-world.rb\n\"Hello World\"<\/code><\/pre>\n\n\n\n\u5c31\u6703\u57f7\u884c\u9019\u500b .rb \u6a94<\/p>\n\n\n\n<\/span>3. Ruby \u4ecb\u7d39<\/span><\/h2>\n\n\n\n<\/span>3.1 \u52d5\u614b\u8a9e\u8a00<\/span><\/h3>\n\n\n\nRuby \u662f\u52d5\u614b\u8a9e\u8a00\uff0c\u4e0d\u9700\u4e8b\u5148\u5b9a\u7fa9\u8b8a\u6578\u7684\u578b\u5225\uff1a<\/p>\n\n\n\nstr = \"Hello World!\"\nnumber = 123<\/code><\/pre>\n\n\n\n<\/span>3.2 \u5f37\u578b\u5225<\/span><\/h3>\n\n\n\n\u548c JavaScript \u4e0d\u540c\uff0cRuby \u662f\u5f37\u578b\u5225\u8a9e\u8a00\uff0c\u4e5f\u5c31\u662f\u8aaa\u7576\u5169\u500b\u8b8a\u6578\u578b\u5225\u4e0d\u540c\u6642\u76f8\u52a0 Ruby \u6703\u5831\u932f\uff1a<\/p>\n\n\n\nstr1 = \"Hello \"\nstr2 = \"World\"\np str1 + str2\n# \"Hello World!\"\n\nnumber = 123\np str1 + number\n# Error! no implicit conversion of Integer into String (TypeError)<\/code><\/pre>\n\n\n\n<\/span>3.3 OOP<\/span><\/h3>\n\n\n\nRuby \u662f OOP – Object-Oriented Programming \u7269\u4ef6\u5c0e\u5411\u7684\u7a0b\u5f0f\u8a9e\u8a00\uff0c\u4e5f\u5c31\u662f\u8aaa\u5728 Ruby \u7684\u4e16\u754c\u4e2d\uff0c\u5e7e\u4e4e\u6240\u6709\u7684\u6771\u897f\u90fd\u7531 object \u69cb\u6210\uff0c\u53ef\u4ee5\u5f9e\u6bcf\u500b object \u7684 .class \u5f97\u77e5\u9019\u500b object \u662f\u7531\u54ea\u500b class new \u51fa\u4f86\u7684\uff1a<\/p>\n\n\n\np \"Hello\".class\n# String\n\np 123.class\n# Integer\n\np [].class\n# Array<\/code><\/pre>\n\n\n\n<\/span>4. \u53c3\u8003\u8cc7\u6599<\/span><\/h2>\n\n\n\nRuby Programming Language \u4e2d\u6587\u5b98\u65b9\u7db2\u9801<\/a>Day 22: \u4f7f\u7528 VS Code \u4f86\u958b\u767c Ruby & Rails<\/a>Learn to Code with Ruby<\/a><\/p>\n\n\n\n\n\n\u5982\u679c\u89ba\u5f97\u6211\u7684\u6587\u7ae0\u6709\u5e6b\u52a9\u7684\u8a71\uff0c\u6b61\u8fce\u5e6b\u6211\u7684\u7c89\u5c08\u6309\u8b9a\u54e6~\u8b1d\u8b1d\u4f60\uff01<\/p>\n\n<\/iframe>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6700\u8fd1\u5728\u5b78\u7fd2 Ruby\uff0c\u7a0d\u5fae\u6d88\u5316\u4e00\u4e0b\u5df2\u7d93\u6574\u7406\u597d\u7684\u7b46\u8a18\uff0c\u5e0c\u671b\u751f\u51fa\u4e00\u7cfb\u5217\u6559\u5b78\u6587\uff01<\/p>\n","protected":false},"author":1,"featured_media":2606,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[184,90],"tags":[186],"_links":{"self":[{"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/posts\/2598"}],"collection":[{"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/comments?post=2598"}],"version-history":[{"count":7,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/posts\/2598\/revisions"}],"predecessor-version":[{"id":2622,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/posts\/2598\/revisions\/2622"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/media\/2606"}],"wp:attachment":[{"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/media?parent=2598"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/categories?post=2598"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/tags?post=2598"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
rbenv \u53ef\u4ee5\u5728\u672c\u6a5f\u4e0a\u5b89\u88dd\u591a\u500b Ruby \u7248\u672c\uff0c\u53ef\u4ee5\u7528\u4ee5\u4e0b\u6307\u4ee4\u67e5\u770b\u76ee\u524d\u5df2\u7d93\u5b89\u88dd\u7684 Ruby \u7248\u672c\uff1a<\/p>\n\n\n\n
$ rbenv versions<\/code><\/pre>\n\n\n\n<\/span>1.3 \u8a2d\u5b9a Ruby \u7248\u672c<\/span><\/h3>\n\n\n\n\u4e0b\u4e86 rbenv versions \u5f8c\u53ef\u4ee5\u770b\u5230\u672c\u6a5f\u53ef\u80fd\u4e0d\u53ea\u6709\u525b\u5b89\u88dd\u7684\u7248\u672c\uff0c\u9084\u6703\u6709\u7cfb\u7d71\u9810\u8a2d\u7684\u7248\u672c\uff0c\u56e0\u6b64\u9700\u8981\u6307\u5b9a\u7248\u672c\u70ba\u525b\u525b\u5b89\u88dd\u7684 Ruby \u7279\u5b9a\u7248\u672c\uff1a<\/p>\n\n\n\n$ rbenv global 3.1.2<\/code><\/pre>\n\n\n\n\u8a2d\u5b9a\u5b8c\u6210\u5f8c\u53ef\u4ee5\u7528\u4ee5\u4e0b\u6307\u4ee4\u78ba\u8a8d global \u7684\u7248\u672c\u662f\u5426\u70ba\u525b\u525b\u8a2d\u5b9a\u7684\u7248\u672c\uff1a<\/p>\n\n\n\n$ rbenv version\n3.1.2 (set by \/Users\/jimmy\/.rbenv\/version)<\/code><\/pre>\n\n\n\n\u540c\u6642\u4e5f\u8981\u78ba\u8a8d Ruby \u7684\u7248\u672c\uff1a<\/p>\n\n\n\n$ ruby -v\nruby 3.1.2p20 (2022-04-12 revision 4491bb740a) [arm64-darwin21]<\/code><\/pre>\n\n\n\n\u5982\u679c ruby -v \u7684\u7248\u672c\u548c global \u4e0d\u4e00\u6a23\uff0c\u52a0\u4ee5\u4e0b\u5169\u884c\u5230 ~\/.zshrc\n(\u5982\u679c shell \u662f\u4f7f\u7528 bash\uff0c\u5247\u52a0\u5230 ~\/.bashrc)\n export PATH=$HOME\/.rbenv\/bin:$PATH\n export PATH=$HOME\/.rbenv\/shims:$PATH<\/pre>\n\n\n\n<\/span>2. VSCode \u74b0\u5883\u8a2d\u7f6e<\/span><\/h2>\n\n\n\n\u500b\u4eba\u7fd2\u6163\u7528 vscode \u4f86\u5beb code\uff0c\u56e0\u6b64\u7c21\u55ae\u4ecb\u7d39\u4e00\u4e0b\u5beb Ruby \u6642\u53ef\u4ee5\u5b89\u88dd\u7684\u8f14\u52a9 plugin<\/p>\n\n\n\n<\/span>2.1 Ruby<\/span><\/h3>\n\n\n\nRuby \u7684\u8a9e\u8a00\u5305<\/p>\n\n\n\n\u5957\u4ef6\u9023\u7d50\uff1ahttps:\/\/marketplace.visualstudio.com\/items?itemName=rebornix.Ruby<\/a><\/p>\n\n\n\n<\/span>2.2 VSCode Ruby<\/span><\/h3>\n\n\n\n\u5728 .rb \u6a94\u4e2d highlight syntax<\/p>\n\n\n\n<\/a><\/figure><\/div>\n\n\n\n\u5957\u4ef6\u9023\u7d50\uff1ahttps:\/\/marketplace.visualstudio.com\/items?itemName=wingrunr21.vscode-ruby<\/a><\/p>\n\n\n\n<\/span>2.3 Ruby Solargraph<\/span><\/h3>\n\n\n\n\u5beb Ruby \u6642\u9019\u500b\u5957\u4ef6\u53ef\u4ee5\u652f\u63f4 auto complete<\/p>\n\n\n\n<\/a><\/figure><\/div>\n\n\n\n\u5957\u4ef6\u9023\u7d50\uff1ahttps:\/\/marketplace.visualstudio.com\/items?itemName=castwide.solargraph<\/a><\/p>\n\n\n\n<\/span>2.4 endwise<\/span><\/h3>\n\n\n\n\u5728 Ruby \u4e2d\uff0cmethod, loop, if \u7b49\u7b49\u90fd\u662f\u7528 end \u7d50\u5c3e\uff0c\u9019\u500b\u5957\u4ef6\u6703\u81ea\u52d5\u5e6b\u4f60\u52a0\u4e0a end\uff0c\u514d\u5f97\u5fd8\u8a18\u6253\u4e0a\u9020\u6210\u7de8\u8b6f\u932f\u8aa4\uff1a<\/p>\n\n\n\n<\/a><\/figure><\/div>\n\n\n\n\u5957\u4ef6\u9023\u7d50\uff1ahttps:\/\/marketplace.visualstudio.com\/items?itemName=kaiwood.endwise&ssr=false#overview<\/a><\/p>\n\n\n\n<\/span>2.5 Code Runner<\/span><\/h3>\n\n\n\nCode Runner \u5176\u5be6\u652f\u63f4\u8a31\u591a\u8a9e\u8a00\uff0cRuby \u4e5f\u662f\u5176\u4e2d\u4e4b\u4e00\uff0c\u6211\u89ba\u5f97\u53ef\u4ee5\u7528\u5feb\u6377\u9375(control + option + N)\u5feb\u901f\u7de8\u8b6f Ruby \u6709\u6642\u5019\u6eff\u65b9\u4fbf\u7684<\/p>\n\n\n\n\u5957\u4ef6\u9023\u7d50\uff1ahttps:\/\/marketplace.visualstudio.com\/items?itemName=formulahendry.code-runner<\/a><\/p>\n\n\n\n<\/span>2.6 \u5728 vscode \u57f7\u884c .rb<\/span><\/h3>\n\n\n\n\u5728 vscode \u4e2d\u5beb\u5b8c code \u5f8c\uff0c\u53ef\u4ee5\u76f4\u63a5\u5728 terminal \u7de8\u8b6f\u6a94\u6848\u5f97\u5230\u7d50\u679c\uff1a<\/p>\n\n\n\n# hello-world.rb\nstr = \"Hello World\"\np str<\/code><\/pre>\n\n\n\n\u5728 terminal \u4e2d\u57f7\u884c\uff1a<\/p>\n\n\n\n$ ruby hello-world.rb\n\"Hello World\"<\/code><\/pre>\n\n\n\n\u5c31\u6703\u57f7\u884c\u9019\u500b .rb \u6a94<\/p>\n\n\n\n<\/span>3. Ruby \u4ecb\u7d39<\/span><\/h2>\n\n\n\n<\/span>3.1 \u52d5\u614b\u8a9e\u8a00<\/span><\/h3>\n\n\n\nRuby \u662f\u52d5\u614b\u8a9e\u8a00\uff0c\u4e0d\u9700\u4e8b\u5148\u5b9a\u7fa9\u8b8a\u6578\u7684\u578b\u5225\uff1a<\/p>\n\n\n\nstr = \"Hello World!\"\nnumber = 123<\/code><\/pre>\n\n\n\n<\/span>3.2 \u5f37\u578b\u5225<\/span><\/h3>\n\n\n\n\u548c JavaScript \u4e0d\u540c\uff0cRuby \u662f\u5f37\u578b\u5225\u8a9e\u8a00\uff0c\u4e5f\u5c31\u662f\u8aaa\u7576\u5169\u500b\u8b8a\u6578\u578b\u5225\u4e0d\u540c\u6642\u76f8\u52a0 Ruby \u6703\u5831\u932f\uff1a<\/p>\n\n\n\nstr1 = \"Hello \"\nstr2 = \"World\"\np str1 + str2\n# \"Hello World!\"\n\nnumber = 123\np str1 + number\n# Error! no implicit conversion of Integer into String (TypeError)<\/code><\/pre>\n\n\n\n<\/span>3.3 OOP<\/span><\/h3>\n\n\n\nRuby \u662f OOP – Object-Oriented Programming \u7269\u4ef6\u5c0e\u5411\u7684\u7a0b\u5f0f\u8a9e\u8a00\uff0c\u4e5f\u5c31\u662f\u8aaa\u5728 Ruby \u7684\u4e16\u754c\u4e2d\uff0c\u5e7e\u4e4e\u6240\u6709\u7684\u6771\u897f\u90fd\u7531 object \u69cb\u6210\uff0c\u53ef\u4ee5\u5f9e\u6bcf\u500b object \u7684 .class \u5f97\u77e5\u9019\u500b object \u662f\u7531\u54ea\u500b class new \u51fa\u4f86\u7684\uff1a<\/p>\n\n\n\np \"Hello\".class\n# String\n\np 123.class\n# Integer\n\np [].class\n# Array<\/code><\/pre>\n\n\n\n<\/span>4. \u53c3\u8003\u8cc7\u6599<\/span><\/h2>\n\n\n\nRuby Programming Language \u4e2d\u6587\u5b98\u65b9\u7db2\u9801<\/a>Day 22: \u4f7f\u7528 VS Code \u4f86\u958b\u767c Ruby & Rails<\/a>Learn to Code with Ruby<\/a><\/p>\n\n\n\n\n\n\u5982\u679c\u89ba\u5f97\u6211\u7684\u6587\u7ae0\u6709\u5e6b\u52a9\u7684\u8a71\uff0c\u6b61\u8fce\u5e6b\u6211\u7684\u7c89\u5c08\u6309\u8b9a\u54e6~\u8b1d\u8b1d\u4f60\uff01<\/p>\n\n<\/iframe>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6700\u8fd1\u5728\u5b78\u7fd2 Ruby\uff0c\u7a0d\u5fae\u6d88\u5316\u4e00\u4e0b\u5df2\u7d93\u6574\u7406\u597d\u7684\u7b46\u8a18\uff0c\u5e0c\u671b\u751f\u51fa\u4e00\u7cfb\u5217\u6559\u5b78\u6587\uff01<\/p>\n","protected":false},"author":1,"featured_media":2606,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[184,90],"tags":[186],"_links":{"self":[{"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/posts\/2598"}],"collection":[{"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/comments?post=2598"}],"version-history":[{"count":7,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/posts\/2598\/revisions"}],"predecessor-version":[{"id":2622,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/posts\/2598\/revisions\/2622"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/media\/2606"}],"wp:attachment":[{"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/media?parent=2598"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/categories?post=2598"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/tags?post=2598"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
\u4e0b\u4e86 rbenv versions \u5f8c\u53ef\u4ee5\u770b\u5230\u672c\u6a5f\u53ef\u80fd\u4e0d\u53ea\u6709\u525b\u5b89\u88dd\u7684\u7248\u672c\uff0c\u9084\u6703\u6709\u7cfb\u7d71\u9810\u8a2d\u7684\u7248\u672c\uff0c\u56e0\u6b64\u9700\u8981\u6307\u5b9a\u7248\u672c\u70ba\u525b\u525b\u5b89\u88dd\u7684 Ruby \u7279\u5b9a\u7248\u672c\uff1a<\/p>\n\n\n\n
$ rbenv global 3.1.2<\/code><\/pre>\n\n\n\n\u8a2d\u5b9a\u5b8c\u6210\u5f8c\u53ef\u4ee5\u7528\u4ee5\u4e0b\u6307\u4ee4\u78ba\u8a8d global \u7684\u7248\u672c\u662f\u5426\u70ba\u525b\u525b\u8a2d\u5b9a\u7684\u7248\u672c\uff1a<\/p>\n\n\n\n$ rbenv version\n3.1.2 (set by \/Users\/jimmy\/.rbenv\/version)<\/code><\/pre>\n\n\n\n\u540c\u6642\u4e5f\u8981\u78ba\u8a8d Ruby \u7684\u7248\u672c\uff1a<\/p>\n\n\n\n$ ruby -v\nruby 3.1.2p20 (2022-04-12 revision 4491bb740a) [arm64-darwin21]<\/code><\/pre>\n\n\n\n\u5982\u679c ruby -v \u7684\u7248\u672c\u548c global \u4e0d\u4e00\u6a23\uff0c\u52a0\u4ee5\u4e0b\u5169\u884c\u5230 ~\/.zshrc\n(\u5982\u679c shell \u662f\u4f7f\u7528 bash\uff0c\u5247\u52a0\u5230 ~\/.bashrc)\n export PATH=$HOME\/.rbenv\/bin:$PATH\n export PATH=$HOME\/.rbenv\/shims:$PATH<\/pre>\n\n\n\n<\/span>2. VSCode \u74b0\u5883\u8a2d\u7f6e<\/span><\/h2>\n\n\n\n\u500b\u4eba\u7fd2\u6163\u7528 vscode \u4f86\u5beb code\uff0c\u56e0\u6b64\u7c21\u55ae\u4ecb\u7d39\u4e00\u4e0b\u5beb Ruby \u6642\u53ef\u4ee5\u5b89\u88dd\u7684\u8f14\u52a9 plugin<\/p>\n\n\n\n<\/span>2.1 Ruby<\/span><\/h3>\n\n\n\nRuby \u7684\u8a9e\u8a00\u5305<\/p>\n\n\n\n\u5957\u4ef6\u9023\u7d50\uff1ahttps:\/\/marketplace.visualstudio.com\/items?itemName=rebornix.Ruby<\/a><\/p>\n\n\n\n<\/span>2.2 VSCode Ruby<\/span><\/h3>\n\n\n\n\u5728 .rb \u6a94\u4e2d highlight syntax<\/p>\n\n\n\n<\/a><\/figure><\/div>\n\n\n\n\u5957\u4ef6\u9023\u7d50\uff1ahttps:\/\/marketplace.visualstudio.com\/items?itemName=wingrunr21.vscode-ruby<\/a><\/p>\n\n\n\n<\/span>2.3 Ruby Solargraph<\/span><\/h3>\n\n\n\n\u5beb Ruby \u6642\u9019\u500b\u5957\u4ef6\u53ef\u4ee5\u652f\u63f4 auto complete<\/p>\n\n\n\n<\/a><\/figure><\/div>\n\n\n\n\u5957\u4ef6\u9023\u7d50\uff1ahttps:\/\/marketplace.visualstudio.com\/items?itemName=castwide.solargraph<\/a><\/p>\n\n\n\n<\/span>2.4 endwise<\/span><\/h3>\n\n\n\n\u5728 Ruby \u4e2d\uff0cmethod, loop, if \u7b49\u7b49\u90fd\u662f\u7528 end \u7d50\u5c3e\uff0c\u9019\u500b\u5957\u4ef6\u6703\u81ea\u52d5\u5e6b\u4f60\u52a0\u4e0a end\uff0c\u514d\u5f97\u5fd8\u8a18\u6253\u4e0a\u9020\u6210\u7de8\u8b6f\u932f\u8aa4\uff1a<\/p>\n\n\n\n<\/a><\/figure><\/div>\n\n\n\n\u5957\u4ef6\u9023\u7d50\uff1ahttps:\/\/marketplace.visualstudio.com\/items?itemName=kaiwood.endwise&ssr=false#overview<\/a><\/p>\n\n\n\n<\/span>2.5 Code Runner<\/span><\/h3>\n\n\n\nCode Runner \u5176\u5be6\u652f\u63f4\u8a31\u591a\u8a9e\u8a00\uff0cRuby \u4e5f\u662f\u5176\u4e2d\u4e4b\u4e00\uff0c\u6211\u89ba\u5f97\u53ef\u4ee5\u7528\u5feb\u6377\u9375(control + option + N)\u5feb\u901f\u7de8\u8b6f Ruby \u6709\u6642\u5019\u6eff\u65b9\u4fbf\u7684<\/p>\n\n\n\n\u5957\u4ef6\u9023\u7d50\uff1ahttps:\/\/marketplace.visualstudio.com\/items?itemName=formulahendry.code-runner<\/a><\/p>\n\n\n\n<\/span>2.6 \u5728 vscode \u57f7\u884c .rb<\/span><\/h3>\n\n\n\n\u5728 vscode \u4e2d\u5beb\u5b8c code \u5f8c\uff0c\u53ef\u4ee5\u76f4\u63a5\u5728 terminal \u7de8\u8b6f\u6a94\u6848\u5f97\u5230\u7d50\u679c\uff1a<\/p>\n\n\n\n# hello-world.rb\nstr = \"Hello World\"\np str<\/code><\/pre>\n\n\n\n\u5728 terminal \u4e2d\u57f7\u884c\uff1a<\/p>\n\n\n\n$ ruby hello-world.rb\n\"Hello World\"<\/code><\/pre>\n\n\n\n\u5c31\u6703\u57f7\u884c\u9019\u500b .rb \u6a94<\/p>\n\n\n\n<\/span>3. Ruby \u4ecb\u7d39<\/span><\/h2>\n\n\n\n<\/span>3.1 \u52d5\u614b\u8a9e\u8a00<\/span><\/h3>\n\n\n\nRuby \u662f\u52d5\u614b\u8a9e\u8a00\uff0c\u4e0d\u9700\u4e8b\u5148\u5b9a\u7fa9\u8b8a\u6578\u7684\u578b\u5225\uff1a<\/p>\n\n\n\nstr = \"Hello World!\"\nnumber = 123<\/code><\/pre>\n\n\n\n<\/span>3.2 \u5f37\u578b\u5225<\/span><\/h3>\n\n\n\n\u548c JavaScript \u4e0d\u540c\uff0cRuby \u662f\u5f37\u578b\u5225\u8a9e\u8a00\uff0c\u4e5f\u5c31\u662f\u8aaa\u7576\u5169\u500b\u8b8a\u6578\u578b\u5225\u4e0d\u540c\u6642\u76f8\u52a0 Ruby \u6703\u5831\u932f\uff1a<\/p>\n\n\n\nstr1 = \"Hello \"\nstr2 = \"World\"\np str1 + str2\n# \"Hello World!\"\n\nnumber = 123\np str1 + number\n# Error! no implicit conversion of Integer into String (TypeError)<\/code><\/pre>\n\n\n\n<\/span>3.3 OOP<\/span><\/h3>\n\n\n\nRuby \u662f OOP – Object-Oriented Programming \u7269\u4ef6\u5c0e\u5411\u7684\u7a0b\u5f0f\u8a9e\u8a00\uff0c\u4e5f\u5c31\u662f\u8aaa\u5728 Ruby \u7684\u4e16\u754c\u4e2d\uff0c\u5e7e\u4e4e\u6240\u6709\u7684\u6771\u897f\u90fd\u7531 object \u69cb\u6210\uff0c\u53ef\u4ee5\u5f9e\u6bcf\u500b object \u7684 .class \u5f97\u77e5\u9019\u500b object \u662f\u7531\u54ea\u500b class new \u51fa\u4f86\u7684\uff1a<\/p>\n\n\n\np \"Hello\".class\n# String\n\np 123.class\n# Integer\n\np [].class\n# Array<\/code><\/pre>\n\n\n\n<\/span>4. \u53c3\u8003\u8cc7\u6599<\/span><\/h2>\n\n\n\nRuby Programming Language \u4e2d\u6587\u5b98\u65b9\u7db2\u9801<\/a>Day 22: \u4f7f\u7528 VS Code \u4f86\u958b\u767c Ruby & Rails<\/a>Learn to Code with Ruby<\/a><\/p>\n\n\n\n\n\n\u5982\u679c\u89ba\u5f97\u6211\u7684\u6587\u7ae0\u6709\u5e6b\u52a9\u7684\u8a71\uff0c\u6b61\u8fce\u5e6b\u6211\u7684\u7c89\u5c08\u6309\u8b9a\u54e6~\u8b1d\u8b1d\u4f60\uff01<\/p>\n\n<\/iframe>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6700\u8fd1\u5728\u5b78\u7fd2 Ruby\uff0c\u7a0d\u5fae\u6d88\u5316\u4e00\u4e0b\u5df2\u7d93\u6574\u7406\u597d\u7684\u7b46\u8a18\uff0c\u5e0c\u671b\u751f\u51fa\u4e00\u7cfb\u5217\u6559\u5b78\u6587\uff01<\/p>\n","protected":false},"author":1,"featured_media":2606,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[184,90],"tags":[186],"_links":{"self":[{"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/posts\/2598"}],"collection":[{"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/comments?post=2598"}],"version-history":[{"count":7,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/posts\/2598\/revisions"}],"predecessor-version":[{"id":2622,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/posts\/2598\/revisions\/2622"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/media\/2606"}],"wp:attachment":[{"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/media?parent=2598"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/categories?post=2598"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/tags?post=2598"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
\u8a2d\u5b9a\u5b8c\u6210\u5f8c\u53ef\u4ee5\u7528\u4ee5\u4e0b\u6307\u4ee4\u78ba\u8a8d global \u7684\u7248\u672c\u662f\u5426\u70ba\u525b\u525b\u8a2d\u5b9a\u7684\u7248\u672c\uff1a<\/p>\n\n\n\n
$ rbenv version\n3.1.2 (set by \/Users\/jimmy\/.rbenv\/version)<\/code><\/pre>\n\n\n\n\u540c\u6642\u4e5f\u8981\u78ba\u8a8d Ruby \u7684\u7248\u672c\uff1a<\/p>\n\n\n\n$ ruby -v\nruby 3.1.2p20 (2022-04-12 revision 4491bb740a) [arm64-darwin21]<\/code><\/pre>\n\n\n\n\u5982\u679c ruby -v \u7684\u7248\u672c\u548c global \u4e0d\u4e00\u6a23\uff0c\u52a0\u4ee5\u4e0b\u5169\u884c\u5230 ~\/.zshrc\n(\u5982\u679c shell \u662f\u4f7f\u7528 bash\uff0c\u5247\u52a0\u5230 ~\/.bashrc)\n export PATH=$HOME\/.rbenv\/bin:$PATH\n export PATH=$HOME\/.rbenv\/shims:$PATH<\/pre>\n\n\n\n<\/span>2. VSCode \u74b0\u5883\u8a2d\u7f6e<\/span><\/h2>\n\n\n\n\u500b\u4eba\u7fd2\u6163\u7528 vscode \u4f86\u5beb code\uff0c\u56e0\u6b64\u7c21\u55ae\u4ecb\u7d39\u4e00\u4e0b\u5beb Ruby \u6642\u53ef\u4ee5\u5b89\u88dd\u7684\u8f14\u52a9 plugin<\/p>\n\n\n\n<\/span>2.1 Ruby<\/span><\/h3>\n\n\n\nRuby \u7684\u8a9e\u8a00\u5305<\/p>\n\n\n\n\u5957\u4ef6\u9023\u7d50\uff1ahttps:\/\/marketplace.visualstudio.com\/items?itemName=rebornix.Ruby<\/a><\/p>\n\n\n\n<\/span>2.2 VSCode Ruby<\/span><\/h3>\n\n\n\n\u5728 .rb \u6a94\u4e2d highlight syntax<\/p>\n\n\n\n<\/a><\/figure><\/div>\n\n\n\n\u5957\u4ef6\u9023\u7d50\uff1ahttps:\/\/marketplace.visualstudio.com\/items?itemName=wingrunr21.vscode-ruby<\/a><\/p>\n\n\n\n<\/span>2.3 Ruby Solargraph<\/span><\/h3>\n\n\n\n\u5beb Ruby \u6642\u9019\u500b\u5957\u4ef6\u53ef\u4ee5\u652f\u63f4 auto complete<\/p>\n\n\n\n<\/a><\/figure><\/div>\n\n\n\n\u5957\u4ef6\u9023\u7d50\uff1ahttps:\/\/marketplace.visualstudio.com\/items?itemName=castwide.solargraph<\/a><\/p>\n\n\n\n<\/span>2.4 endwise<\/span><\/h3>\n\n\n\n\u5728 Ruby \u4e2d\uff0cmethod, loop, if \u7b49\u7b49\u90fd\u662f\u7528 end \u7d50\u5c3e\uff0c\u9019\u500b\u5957\u4ef6\u6703\u81ea\u52d5\u5e6b\u4f60\u52a0\u4e0a end\uff0c\u514d\u5f97\u5fd8\u8a18\u6253\u4e0a\u9020\u6210\u7de8\u8b6f\u932f\u8aa4\uff1a<\/p>\n\n\n\n<\/a><\/figure><\/div>\n\n\n\n\u5957\u4ef6\u9023\u7d50\uff1ahttps:\/\/marketplace.visualstudio.com\/items?itemName=kaiwood.endwise&ssr=false#overview<\/a><\/p>\n\n\n\n<\/span>2.5 Code Runner<\/span><\/h3>\n\n\n\nCode Runner \u5176\u5be6\u652f\u63f4\u8a31\u591a\u8a9e\u8a00\uff0cRuby \u4e5f\u662f\u5176\u4e2d\u4e4b\u4e00\uff0c\u6211\u89ba\u5f97\u53ef\u4ee5\u7528\u5feb\u6377\u9375(control + option + N)\u5feb\u901f\u7de8\u8b6f Ruby \u6709\u6642\u5019\u6eff\u65b9\u4fbf\u7684<\/p>\n\n\n\n\u5957\u4ef6\u9023\u7d50\uff1ahttps:\/\/marketplace.visualstudio.com\/items?itemName=formulahendry.code-runner<\/a><\/p>\n\n\n\n<\/span>2.6 \u5728 vscode \u57f7\u884c .rb<\/span><\/h3>\n\n\n\n\u5728 vscode \u4e2d\u5beb\u5b8c code \u5f8c\uff0c\u53ef\u4ee5\u76f4\u63a5\u5728 terminal \u7de8\u8b6f\u6a94\u6848\u5f97\u5230\u7d50\u679c\uff1a<\/p>\n\n\n\n# hello-world.rb\nstr = \"Hello World\"\np str<\/code><\/pre>\n\n\n\n\u5728 terminal \u4e2d\u57f7\u884c\uff1a<\/p>\n\n\n\n$ ruby hello-world.rb\n\"Hello World\"<\/code><\/pre>\n\n\n\n\u5c31\u6703\u57f7\u884c\u9019\u500b .rb \u6a94<\/p>\n\n\n\n<\/span>3. Ruby \u4ecb\u7d39<\/span><\/h2>\n\n\n\n<\/span>3.1 \u52d5\u614b\u8a9e\u8a00<\/span><\/h3>\n\n\n\nRuby \u662f\u52d5\u614b\u8a9e\u8a00\uff0c\u4e0d\u9700\u4e8b\u5148\u5b9a\u7fa9\u8b8a\u6578\u7684\u578b\u5225\uff1a<\/p>\n\n\n\nstr = \"Hello World!\"\nnumber = 123<\/code><\/pre>\n\n\n\n<\/span>3.2 \u5f37\u578b\u5225<\/span><\/h3>\n\n\n\n\u548c JavaScript \u4e0d\u540c\uff0cRuby \u662f\u5f37\u578b\u5225\u8a9e\u8a00\uff0c\u4e5f\u5c31\u662f\u8aaa\u7576\u5169\u500b\u8b8a\u6578\u578b\u5225\u4e0d\u540c\u6642\u76f8\u52a0 Ruby \u6703\u5831\u932f\uff1a<\/p>\n\n\n\nstr1 = \"Hello \"\nstr2 = \"World\"\np str1 + str2\n# \"Hello World!\"\n\nnumber = 123\np str1 + number\n# Error! no implicit conversion of Integer into String (TypeError)<\/code><\/pre>\n\n\n\n<\/span>3.3 OOP<\/span><\/h3>\n\n\n\nRuby \u662f OOP – Object-Oriented Programming \u7269\u4ef6\u5c0e\u5411\u7684\u7a0b\u5f0f\u8a9e\u8a00\uff0c\u4e5f\u5c31\u662f\u8aaa\u5728 Ruby \u7684\u4e16\u754c\u4e2d\uff0c\u5e7e\u4e4e\u6240\u6709\u7684\u6771\u897f\u90fd\u7531 object \u69cb\u6210\uff0c\u53ef\u4ee5\u5f9e\u6bcf\u500b object \u7684 .class \u5f97\u77e5\u9019\u500b object \u662f\u7531\u54ea\u500b class new \u51fa\u4f86\u7684\uff1a<\/p>\n\n\n\np \"Hello\".class\n# String\n\np 123.class\n# Integer\n\np [].class\n# Array<\/code><\/pre>\n\n\n\n<\/span>4. \u53c3\u8003\u8cc7\u6599<\/span><\/h2>\n\n\n\nRuby Programming Language \u4e2d\u6587\u5b98\u65b9\u7db2\u9801<\/a>Day 22: \u4f7f\u7528 VS Code \u4f86\u958b\u767c Ruby & Rails<\/a>Learn to Code with Ruby<\/a><\/p>\n\n\n\n\n\n\u5982\u679c\u89ba\u5f97\u6211\u7684\u6587\u7ae0\u6709\u5e6b\u52a9\u7684\u8a71\uff0c\u6b61\u8fce\u5e6b\u6211\u7684\u7c89\u5c08\u6309\u8b9a\u54e6~\u8b1d\u8b1d\u4f60\uff01<\/p>\n\n<\/iframe>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6700\u8fd1\u5728\u5b78\u7fd2 Ruby\uff0c\u7a0d\u5fae\u6d88\u5316\u4e00\u4e0b\u5df2\u7d93\u6574\u7406\u597d\u7684\u7b46\u8a18\uff0c\u5e0c\u671b\u751f\u51fa\u4e00\u7cfb\u5217\u6559\u5b78\u6587\uff01<\/p>\n","protected":false},"author":1,"featured_media":2606,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[184,90],"tags":[186],"_links":{"self":[{"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/posts\/2598"}],"collection":[{"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/comments?post=2598"}],"version-history":[{"count":7,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/posts\/2598\/revisions"}],"predecessor-version":[{"id":2622,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/posts\/2598\/revisions\/2622"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/media\/2606"}],"wp:attachment":[{"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/media?parent=2598"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/categories?post=2598"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/tags?post=2598"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
\u540c\u6642\u4e5f\u8981\u78ba\u8a8d Ruby \u7684\u7248\u672c\uff1a<\/p>\n\n\n\n
$ ruby -v\nruby 3.1.2p20 (2022-04-12 revision 4491bb740a) [arm64-darwin21]<\/code><\/pre>\n\n\n\n\u5982\u679c ruby -v \u7684\u7248\u672c\u548c global \u4e0d\u4e00\u6a23\uff0c\u52a0\u4ee5\u4e0b\u5169\u884c\u5230 ~\/.zshrc\n(\u5982\u679c shell \u662f\u4f7f\u7528 bash\uff0c\u5247\u52a0\u5230 ~\/.bashrc)\n export PATH=$HOME\/.rbenv\/bin:$PATH\n export PATH=$HOME\/.rbenv\/shims:$PATH<\/pre>\n\n\n\n<\/span>2. VSCode \u74b0\u5883\u8a2d\u7f6e<\/span><\/h2>\n\n\n\n\u500b\u4eba\u7fd2\u6163\u7528 vscode \u4f86\u5beb code\uff0c\u56e0\u6b64\u7c21\u55ae\u4ecb\u7d39\u4e00\u4e0b\u5beb Ruby \u6642\u53ef\u4ee5\u5b89\u88dd\u7684\u8f14\u52a9 plugin<\/p>\n\n\n\n<\/span>2.1 Ruby<\/span><\/h3>\n\n\n\nRuby \u7684\u8a9e\u8a00\u5305<\/p>\n\n\n\n\u5957\u4ef6\u9023\u7d50\uff1ahttps:\/\/marketplace.visualstudio.com\/items?itemName=rebornix.Ruby<\/a><\/p>\n\n\n\n<\/span>2.2 VSCode Ruby<\/span><\/h3>\n\n\n\n\u5728 .rb \u6a94\u4e2d highlight syntax<\/p>\n\n\n\n<\/a><\/figure><\/div>\n\n\n\n\u5957\u4ef6\u9023\u7d50\uff1ahttps:\/\/marketplace.visualstudio.com\/items?itemName=wingrunr21.vscode-ruby<\/a><\/p>\n\n\n\n<\/span>2.3 Ruby Solargraph<\/span><\/h3>\n\n\n\n\u5beb Ruby \u6642\u9019\u500b\u5957\u4ef6\u53ef\u4ee5\u652f\u63f4 auto complete<\/p>\n\n\n\n<\/a><\/figure><\/div>\n\n\n\n\u5957\u4ef6\u9023\u7d50\uff1ahttps:\/\/marketplace.visualstudio.com\/items?itemName=castwide.solargraph<\/a><\/p>\n\n\n\n<\/span>2.4 endwise<\/span><\/h3>\n\n\n\n\u5728 Ruby \u4e2d\uff0cmethod, loop, if \u7b49\u7b49\u90fd\u662f\u7528 end \u7d50\u5c3e\uff0c\u9019\u500b\u5957\u4ef6\u6703\u81ea\u52d5\u5e6b\u4f60\u52a0\u4e0a end\uff0c\u514d\u5f97\u5fd8\u8a18\u6253\u4e0a\u9020\u6210\u7de8\u8b6f\u932f\u8aa4\uff1a<\/p>\n\n\n\n<\/a><\/figure><\/div>\n\n\n\n\u5957\u4ef6\u9023\u7d50\uff1ahttps:\/\/marketplace.visualstudio.com\/items?itemName=kaiwood.endwise&ssr=false#overview<\/a><\/p>\n\n\n\n<\/span>2.5 Code Runner<\/span><\/h3>\n\n\n\nCode Runner \u5176\u5be6\u652f\u63f4\u8a31\u591a\u8a9e\u8a00\uff0cRuby \u4e5f\u662f\u5176\u4e2d\u4e4b\u4e00\uff0c\u6211\u89ba\u5f97\u53ef\u4ee5\u7528\u5feb\u6377\u9375(control + option + N)\u5feb\u901f\u7de8\u8b6f Ruby \u6709\u6642\u5019\u6eff\u65b9\u4fbf\u7684<\/p>\n\n\n\n\u5957\u4ef6\u9023\u7d50\uff1ahttps:\/\/marketplace.visualstudio.com\/items?itemName=formulahendry.code-runner<\/a><\/p>\n\n\n\n<\/span>2.6 \u5728 vscode \u57f7\u884c .rb<\/span><\/h3>\n\n\n\n\u5728 vscode \u4e2d\u5beb\u5b8c code \u5f8c\uff0c\u53ef\u4ee5\u76f4\u63a5\u5728 terminal \u7de8\u8b6f\u6a94\u6848\u5f97\u5230\u7d50\u679c\uff1a<\/p>\n\n\n\n# hello-world.rb\nstr = \"Hello World\"\np str<\/code><\/pre>\n\n\n\n\u5728 terminal \u4e2d\u57f7\u884c\uff1a<\/p>\n\n\n\n$ ruby hello-world.rb\n\"Hello World\"<\/code><\/pre>\n\n\n\n\u5c31\u6703\u57f7\u884c\u9019\u500b .rb \u6a94<\/p>\n\n\n\n<\/span>3. Ruby \u4ecb\u7d39<\/span><\/h2>\n\n\n\n<\/span>3.1 \u52d5\u614b\u8a9e\u8a00<\/span><\/h3>\n\n\n\nRuby \u662f\u52d5\u614b\u8a9e\u8a00\uff0c\u4e0d\u9700\u4e8b\u5148\u5b9a\u7fa9\u8b8a\u6578\u7684\u578b\u5225\uff1a<\/p>\n\n\n\nstr = \"Hello World!\"\nnumber = 123<\/code><\/pre>\n\n\n\n<\/span>3.2 \u5f37\u578b\u5225<\/span><\/h3>\n\n\n\n\u548c JavaScript \u4e0d\u540c\uff0cRuby \u662f\u5f37\u578b\u5225\u8a9e\u8a00\uff0c\u4e5f\u5c31\u662f\u8aaa\u7576\u5169\u500b\u8b8a\u6578\u578b\u5225\u4e0d\u540c\u6642\u76f8\u52a0 Ruby \u6703\u5831\u932f\uff1a<\/p>\n\n\n\nstr1 = \"Hello \"\nstr2 = \"World\"\np str1 + str2\n# \"Hello World!\"\n\nnumber = 123\np str1 + number\n# Error! no implicit conversion of Integer into String (TypeError)<\/code><\/pre>\n\n\n\n<\/span>3.3 OOP<\/span><\/h3>\n\n\n\nRuby \u662f OOP – Object-Oriented Programming \u7269\u4ef6\u5c0e\u5411\u7684\u7a0b\u5f0f\u8a9e\u8a00\uff0c\u4e5f\u5c31\u662f\u8aaa\u5728 Ruby \u7684\u4e16\u754c\u4e2d\uff0c\u5e7e\u4e4e\u6240\u6709\u7684\u6771\u897f\u90fd\u7531 object \u69cb\u6210\uff0c\u53ef\u4ee5\u5f9e\u6bcf\u500b object \u7684 .class \u5f97\u77e5\u9019\u500b object \u662f\u7531\u54ea\u500b class new \u51fa\u4f86\u7684\uff1a<\/p>\n\n\n\np \"Hello\".class\n# String\n\np 123.class\n# Integer\n\np [].class\n# Array<\/code><\/pre>\n\n\n\n<\/span>4. \u53c3\u8003\u8cc7\u6599<\/span><\/h2>\n\n\n\nRuby Programming Language \u4e2d\u6587\u5b98\u65b9\u7db2\u9801<\/a>Day 22: \u4f7f\u7528 VS Code \u4f86\u958b\u767c Ruby & Rails<\/a>Learn to Code with Ruby<\/a><\/p>\n\n\n\n\n\n\u5982\u679c\u89ba\u5f97\u6211\u7684\u6587\u7ae0\u6709\u5e6b\u52a9\u7684\u8a71\uff0c\u6b61\u8fce\u5e6b\u6211\u7684\u7c89\u5c08\u6309\u8b9a\u54e6~\u8b1d\u8b1d\u4f60\uff01<\/p>\n\n<\/iframe>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6700\u8fd1\u5728\u5b78\u7fd2 Ruby\uff0c\u7a0d\u5fae\u6d88\u5316\u4e00\u4e0b\u5df2\u7d93\u6574\u7406\u597d\u7684\u7b46\u8a18\uff0c\u5e0c\u671b\u751f\u51fa\u4e00\u7cfb\u5217\u6559\u5b78\u6587\uff01<\/p>\n","protected":false},"author":1,"featured_media":2606,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[184,90],"tags":[186],"_links":{"self":[{"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/posts\/2598"}],"collection":[{"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/comments?post=2598"}],"version-history":[{"count":7,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/posts\/2598\/revisions"}],"predecessor-version":[{"id":2622,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/posts\/2598\/revisions\/2622"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/media\/2606"}],"wp:attachment":[{"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/media?parent=2598"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/categories?post=2598"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/tags?post=2598"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
\u5982\u679c ruby -v \u7684\u7248\u672c\u548c global \u4e0d\u4e00\u6a23\uff0c\u52a0\u4ee5\u4e0b\u5169\u884c\u5230 ~\/.zshrc\n(\u5982\u679c shell \u662f\u4f7f\u7528 bash\uff0c\u5247\u52a0\u5230 ~\/.bashrc)\n export PATH=$HOME\/.rbenv\/bin:$PATH\n export PATH=$HOME\/.rbenv\/shims:$PATH<\/pre>\n\n\n\n<\/span>2. VSCode \u74b0\u5883\u8a2d\u7f6e<\/span><\/h2>\n\n\n\n\u500b\u4eba\u7fd2\u6163\u7528 vscode \u4f86\u5beb code\uff0c\u56e0\u6b64\u7c21\u55ae\u4ecb\u7d39\u4e00\u4e0b\u5beb Ruby \u6642\u53ef\u4ee5\u5b89\u88dd\u7684\u8f14\u52a9 plugin<\/p>\n\n\n\n<\/span>2.1 Ruby<\/span><\/h3>\n\n\n\nRuby \u7684\u8a9e\u8a00\u5305<\/p>\n\n\n\n\u5957\u4ef6\u9023\u7d50\uff1ahttps:\/\/marketplace.visualstudio.com\/items?itemName=rebornix.Ruby<\/a><\/p>\n\n\n\n<\/span>2.2 VSCode Ruby<\/span><\/h3>\n\n\n\n\u5728 .rb \u6a94\u4e2d highlight syntax<\/p>\n\n\n\n<\/a><\/figure><\/div>\n\n\n\n\u5957\u4ef6\u9023\u7d50\uff1ahttps:\/\/marketplace.visualstudio.com\/items?itemName=wingrunr21.vscode-ruby<\/a><\/p>\n\n\n\n<\/span>2.3 Ruby Solargraph<\/span><\/h3>\n\n\n\n\u5beb Ruby \u6642\u9019\u500b\u5957\u4ef6\u53ef\u4ee5\u652f\u63f4 auto complete<\/p>\n\n\n\n<\/a><\/figure><\/div>\n\n\n\n\u5957\u4ef6\u9023\u7d50\uff1ahttps:\/\/marketplace.visualstudio.com\/items?itemName=castwide.solargraph<\/a><\/p>\n\n\n\n<\/span>2.4 endwise<\/span><\/h3>\n\n\n\n\u5728 Ruby \u4e2d\uff0cmethod, loop, if \u7b49\u7b49\u90fd\u662f\u7528 end \u7d50\u5c3e\uff0c\u9019\u500b\u5957\u4ef6\u6703\u81ea\u52d5\u5e6b\u4f60\u52a0\u4e0a end\uff0c\u514d\u5f97\u5fd8\u8a18\u6253\u4e0a\u9020\u6210\u7de8\u8b6f\u932f\u8aa4\uff1a<\/p>\n\n\n\n<\/a><\/figure><\/div>\n\n\n\n\u5957\u4ef6\u9023\u7d50\uff1ahttps:\/\/marketplace.visualstudio.com\/items?itemName=kaiwood.endwise&ssr=false#overview<\/a><\/p>\n\n\n\n<\/span>2.5 Code Runner<\/span><\/h3>\n\n\n\nCode Runner \u5176\u5be6\u652f\u63f4\u8a31\u591a\u8a9e\u8a00\uff0cRuby \u4e5f\u662f\u5176\u4e2d\u4e4b\u4e00\uff0c\u6211\u89ba\u5f97\u53ef\u4ee5\u7528\u5feb\u6377\u9375(control + option + N)\u5feb\u901f\u7de8\u8b6f Ruby \u6709\u6642\u5019\u6eff\u65b9\u4fbf\u7684<\/p>\n\n\n\n\u5957\u4ef6\u9023\u7d50\uff1ahttps:\/\/marketplace.visualstudio.com\/items?itemName=formulahendry.code-runner<\/a><\/p>\n\n\n\n<\/span>2.6 \u5728 vscode \u57f7\u884c .rb<\/span><\/h3>\n\n\n\n\u5728 vscode \u4e2d\u5beb\u5b8c code \u5f8c\uff0c\u53ef\u4ee5\u76f4\u63a5\u5728 terminal \u7de8\u8b6f\u6a94\u6848\u5f97\u5230\u7d50\u679c\uff1a<\/p>\n\n\n\n# hello-world.rb\nstr = \"Hello World\"\np str<\/code><\/pre>\n\n\n\n\u5728 terminal \u4e2d\u57f7\u884c\uff1a<\/p>\n\n\n\n$ ruby hello-world.rb\n\"Hello World\"<\/code><\/pre>\n\n\n\n\u5c31\u6703\u57f7\u884c\u9019\u500b .rb \u6a94<\/p>\n\n\n\n<\/span>3. Ruby \u4ecb\u7d39<\/span><\/h2>\n\n\n\n<\/span>3.1 \u52d5\u614b\u8a9e\u8a00<\/span><\/h3>\n\n\n\nRuby \u662f\u52d5\u614b\u8a9e\u8a00\uff0c\u4e0d\u9700\u4e8b\u5148\u5b9a\u7fa9\u8b8a\u6578\u7684\u578b\u5225\uff1a<\/p>\n\n\n\nstr = \"Hello World!\"\nnumber = 123<\/code><\/pre>\n\n\n\n<\/span>3.2 \u5f37\u578b\u5225<\/span><\/h3>\n\n\n\n\u548c JavaScript \u4e0d\u540c\uff0cRuby \u662f\u5f37\u578b\u5225\u8a9e\u8a00\uff0c\u4e5f\u5c31\u662f\u8aaa\u7576\u5169\u500b\u8b8a\u6578\u578b\u5225\u4e0d\u540c\u6642\u76f8\u52a0 Ruby \u6703\u5831\u932f\uff1a<\/p>\n\n\n\nstr1 = \"Hello \"\nstr2 = \"World\"\np str1 + str2\n# \"Hello World!\"\n\nnumber = 123\np str1 + number\n# Error! no implicit conversion of Integer into String (TypeError)<\/code><\/pre>\n\n\n\n<\/span>3.3 OOP<\/span><\/h3>\n\n\n\nRuby \u662f OOP – Object-Oriented Programming \u7269\u4ef6\u5c0e\u5411\u7684\u7a0b\u5f0f\u8a9e\u8a00\uff0c\u4e5f\u5c31\u662f\u8aaa\u5728 Ruby \u7684\u4e16\u754c\u4e2d\uff0c\u5e7e\u4e4e\u6240\u6709\u7684\u6771\u897f\u90fd\u7531 object \u69cb\u6210\uff0c\u53ef\u4ee5\u5f9e\u6bcf\u500b object \u7684 .class \u5f97\u77e5\u9019\u500b object \u662f\u7531\u54ea\u500b class new \u51fa\u4f86\u7684\uff1a<\/p>\n\n\n\np \"Hello\".class\n# String\n\np 123.class\n# Integer\n\np [].class\n# Array<\/code><\/pre>\n\n\n\n<\/span>4. \u53c3\u8003\u8cc7\u6599<\/span><\/h2>\n\n\n\nRuby Programming Language \u4e2d\u6587\u5b98\u65b9\u7db2\u9801<\/a>Day 22: \u4f7f\u7528 VS Code \u4f86\u958b\u767c Ruby & Rails<\/a>Learn to Code with Ruby<\/a><\/p>\n\n\n\n\n\n\u5982\u679c\u89ba\u5f97\u6211\u7684\u6587\u7ae0\u6709\u5e6b\u52a9\u7684\u8a71\uff0c\u6b61\u8fce\u5e6b\u6211\u7684\u7c89\u5c08\u6309\u8b9a\u54e6~\u8b1d\u8b1d\u4f60\uff01<\/p>\n\n<\/iframe>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6700\u8fd1\u5728\u5b78\u7fd2 Ruby\uff0c\u7a0d\u5fae\u6d88\u5316\u4e00\u4e0b\u5df2\u7d93\u6574\u7406\u597d\u7684\u7b46\u8a18\uff0c\u5e0c\u671b\u751f\u51fa\u4e00\u7cfb\u5217\u6559\u5b78\u6587\uff01<\/p>\n","protected":false},"author":1,"featured_media":2606,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[184,90],"tags":[186],"_links":{"self":[{"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/posts\/2598"}],"collection":[{"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/comments?post=2598"}],"version-history":[{"count":7,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/posts\/2598\/revisions"}],"predecessor-version":[{"id":2622,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/posts\/2598\/revisions\/2622"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/media\/2606"}],"wp:attachment":[{"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/media?parent=2598"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/categories?post=2598"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/tags?post=2598"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
\u500b\u4eba\u7fd2\u6163\u7528 vscode \u4f86\u5beb code\uff0c\u56e0\u6b64\u7c21\u55ae\u4ecb\u7d39\u4e00\u4e0b\u5beb Ruby \u6642\u53ef\u4ee5\u5b89\u88dd\u7684\u8f14\u52a9 plugin<\/p>\n\n\n\n
Ruby \u7684\u8a9e\u8a00\u5305<\/p>\n\n\n\n
\u5957\u4ef6\u9023\u7d50\uff1ahttps:\/\/marketplace.visualstudio.com\/items?itemName=rebornix.Ruby<\/a><\/p>\n\n\n\n<\/span>2.2 VSCode Ruby<\/span><\/h3>\n\n\n\n\u5728 .rb \u6a94\u4e2d highlight syntax<\/p>\n\n\n\n<\/a><\/figure><\/div>\n\n\n\n\u5957\u4ef6\u9023\u7d50\uff1ahttps:\/\/marketplace.visualstudio.com\/items?itemName=wingrunr21.vscode-ruby<\/a><\/p>\n\n\n\n<\/span>2.3 Ruby Solargraph<\/span><\/h3>\n\n\n\n\u5beb Ruby \u6642\u9019\u500b\u5957\u4ef6\u53ef\u4ee5\u652f\u63f4 auto complete<\/p>\n\n\n\n<\/a><\/figure><\/div>\n\n\n\n\u5957\u4ef6\u9023\u7d50\uff1ahttps:\/\/marketplace.visualstudio.com\/items?itemName=castwide.solargraph<\/a><\/p>\n\n\n\n<\/span>2.4 endwise<\/span><\/h3>\n\n\n\n\u5728 Ruby \u4e2d\uff0cmethod, loop, if \u7b49\u7b49\u90fd\u662f\u7528 end \u7d50\u5c3e\uff0c\u9019\u500b\u5957\u4ef6\u6703\u81ea\u52d5\u5e6b\u4f60\u52a0\u4e0a end\uff0c\u514d\u5f97\u5fd8\u8a18\u6253\u4e0a\u9020\u6210\u7de8\u8b6f\u932f\u8aa4\uff1a<\/p>\n\n\n\n<\/a><\/figure><\/div>\n\n\n\n\u5957\u4ef6\u9023\u7d50\uff1ahttps:\/\/marketplace.visualstudio.com\/items?itemName=kaiwood.endwise&ssr=false#overview<\/a><\/p>\n\n\n\n<\/span>2.5 Code Runner<\/span><\/h3>\n\n\n\nCode Runner \u5176\u5be6\u652f\u63f4\u8a31\u591a\u8a9e\u8a00\uff0cRuby \u4e5f\u662f\u5176\u4e2d\u4e4b\u4e00\uff0c\u6211\u89ba\u5f97\u53ef\u4ee5\u7528\u5feb\u6377\u9375(control + option + N)\u5feb\u901f\u7de8\u8b6f Ruby \u6709\u6642\u5019\u6eff\u65b9\u4fbf\u7684<\/p>\n\n\n\n\u5957\u4ef6\u9023\u7d50\uff1ahttps:\/\/marketplace.visualstudio.com\/items?itemName=formulahendry.code-runner<\/a><\/p>\n\n\n\n<\/span>2.6 \u5728 vscode \u57f7\u884c .rb<\/span><\/h3>\n\n\n\n\u5728 vscode \u4e2d\u5beb\u5b8c code \u5f8c\uff0c\u53ef\u4ee5\u76f4\u63a5\u5728 terminal \u7de8\u8b6f\u6a94\u6848\u5f97\u5230\u7d50\u679c\uff1a<\/p>\n\n\n\n# hello-world.rb\nstr = \"Hello World\"\np str<\/code><\/pre>\n\n\n\n\u5728 terminal \u4e2d\u57f7\u884c\uff1a<\/p>\n\n\n\n$ ruby hello-world.rb\n\"Hello World\"<\/code><\/pre>\n\n\n\n\u5c31\u6703\u57f7\u884c\u9019\u500b .rb \u6a94<\/p>\n\n\n\n<\/span>3. Ruby \u4ecb\u7d39<\/span><\/h2>\n\n\n\n<\/span>3.1 \u52d5\u614b\u8a9e\u8a00<\/span><\/h3>\n\n\n\nRuby \u662f\u52d5\u614b\u8a9e\u8a00\uff0c\u4e0d\u9700\u4e8b\u5148\u5b9a\u7fa9\u8b8a\u6578\u7684\u578b\u5225\uff1a<\/p>\n\n\n\nstr = \"Hello World!\"\nnumber = 123<\/code><\/pre>\n\n\n\n<\/span>3.2 \u5f37\u578b\u5225<\/span><\/h3>\n\n\n\n\u548c JavaScript \u4e0d\u540c\uff0cRuby \u662f\u5f37\u578b\u5225\u8a9e\u8a00\uff0c\u4e5f\u5c31\u662f\u8aaa\u7576\u5169\u500b\u8b8a\u6578\u578b\u5225\u4e0d\u540c\u6642\u76f8\u52a0 Ruby \u6703\u5831\u932f\uff1a<\/p>\n\n\n\nstr1 = \"Hello \"\nstr2 = \"World\"\np str1 + str2\n# \"Hello World!\"\n\nnumber = 123\np str1 + number\n# Error! no implicit conversion of Integer into String (TypeError)<\/code><\/pre>\n\n\n\n<\/span>3.3 OOP<\/span><\/h3>\n\n\n\nRuby \u662f OOP – Object-Oriented Programming \u7269\u4ef6\u5c0e\u5411\u7684\u7a0b\u5f0f\u8a9e\u8a00\uff0c\u4e5f\u5c31\u662f\u8aaa\u5728 Ruby \u7684\u4e16\u754c\u4e2d\uff0c\u5e7e\u4e4e\u6240\u6709\u7684\u6771\u897f\u90fd\u7531 object \u69cb\u6210\uff0c\u53ef\u4ee5\u5f9e\u6bcf\u500b object \u7684 .class \u5f97\u77e5\u9019\u500b object \u662f\u7531\u54ea\u500b class new \u51fa\u4f86\u7684\uff1a<\/p>\n\n\n\np \"Hello\".class\n# String\n\np 123.class\n# Integer\n\np [].class\n# Array<\/code><\/pre>\n\n\n\n<\/span>4. \u53c3\u8003\u8cc7\u6599<\/span><\/h2>\n\n\n\nRuby Programming Language \u4e2d\u6587\u5b98\u65b9\u7db2\u9801<\/a>Day 22: \u4f7f\u7528 VS Code \u4f86\u958b\u767c Ruby & Rails<\/a>Learn to Code with Ruby<\/a><\/p>\n\n\n\n\n\n\u5982\u679c\u89ba\u5f97\u6211\u7684\u6587\u7ae0\u6709\u5e6b\u52a9\u7684\u8a71\uff0c\u6b61\u8fce\u5e6b\u6211\u7684\u7c89\u5c08\u6309\u8b9a\u54e6~\u8b1d\u8b1d\u4f60\uff01<\/p>\n\n<\/iframe>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6700\u8fd1\u5728\u5b78\u7fd2 Ruby\uff0c\u7a0d\u5fae\u6d88\u5316\u4e00\u4e0b\u5df2\u7d93\u6574\u7406\u597d\u7684\u7b46\u8a18\uff0c\u5e0c\u671b\u751f\u51fa\u4e00\u7cfb\u5217\u6559\u5b78\u6587\uff01<\/p>\n","protected":false},"author":1,"featured_media":2606,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[184,90],"tags":[186],"_links":{"self":[{"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/posts\/2598"}],"collection":[{"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/comments?post=2598"}],"version-history":[{"count":7,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/posts\/2598\/revisions"}],"predecessor-version":[{"id":2622,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/posts\/2598\/revisions\/2622"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/media\/2606"}],"wp:attachment":[{"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/media?parent=2598"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/categories?post=2598"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/tags?post=2598"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
\u5728 .rb \u6a94\u4e2d highlight syntax<\/p>\n\n\n\n
\u5957\u4ef6\u9023\u7d50\uff1ahttps:\/\/marketplace.visualstudio.com\/items?itemName=wingrunr21.vscode-ruby<\/a><\/p>\n\n\n\n<\/span>2.3 Ruby Solargraph<\/span><\/h3>\n\n\n\n\u5beb Ruby \u6642\u9019\u500b\u5957\u4ef6\u53ef\u4ee5\u652f\u63f4 auto complete<\/p>\n\n\n\n<\/a><\/figure><\/div>\n\n\n\n\u5957\u4ef6\u9023\u7d50\uff1ahttps:\/\/marketplace.visualstudio.com\/items?itemName=castwide.solargraph<\/a><\/p>\n\n\n\n<\/span>2.4 endwise<\/span><\/h3>\n\n\n\n\u5728 Ruby \u4e2d\uff0cmethod, loop, if \u7b49\u7b49\u90fd\u662f\u7528 end \u7d50\u5c3e\uff0c\u9019\u500b\u5957\u4ef6\u6703\u81ea\u52d5\u5e6b\u4f60\u52a0\u4e0a end\uff0c\u514d\u5f97\u5fd8\u8a18\u6253\u4e0a\u9020\u6210\u7de8\u8b6f\u932f\u8aa4\uff1a<\/p>\n\n\n\n<\/a><\/figure><\/div>\n\n\n\n\u5957\u4ef6\u9023\u7d50\uff1ahttps:\/\/marketplace.visualstudio.com\/items?itemName=kaiwood.endwise&ssr=false#overview<\/a><\/p>\n\n\n\n<\/span>2.5 Code Runner<\/span><\/h3>\n\n\n\nCode Runner \u5176\u5be6\u652f\u63f4\u8a31\u591a\u8a9e\u8a00\uff0cRuby \u4e5f\u662f\u5176\u4e2d\u4e4b\u4e00\uff0c\u6211\u89ba\u5f97\u53ef\u4ee5\u7528\u5feb\u6377\u9375(control + option + N)\u5feb\u901f\u7de8\u8b6f Ruby \u6709\u6642\u5019\u6eff\u65b9\u4fbf\u7684<\/p>\n\n\n\n\u5957\u4ef6\u9023\u7d50\uff1ahttps:\/\/marketplace.visualstudio.com\/items?itemName=formulahendry.code-runner<\/a><\/p>\n\n\n\n<\/span>2.6 \u5728 vscode \u57f7\u884c .rb<\/span><\/h3>\n\n\n\n\u5728 vscode \u4e2d\u5beb\u5b8c code \u5f8c\uff0c\u53ef\u4ee5\u76f4\u63a5\u5728 terminal \u7de8\u8b6f\u6a94\u6848\u5f97\u5230\u7d50\u679c\uff1a<\/p>\n\n\n\n# hello-world.rb\nstr = \"Hello World\"\np str<\/code><\/pre>\n\n\n\n\u5728 terminal \u4e2d\u57f7\u884c\uff1a<\/p>\n\n\n\n$ ruby hello-world.rb\n\"Hello World\"<\/code><\/pre>\n\n\n\n\u5c31\u6703\u57f7\u884c\u9019\u500b .rb \u6a94<\/p>\n\n\n\n<\/span>3. Ruby \u4ecb\u7d39<\/span><\/h2>\n\n\n\n<\/span>3.1 \u52d5\u614b\u8a9e\u8a00<\/span><\/h3>\n\n\n\nRuby \u662f\u52d5\u614b\u8a9e\u8a00\uff0c\u4e0d\u9700\u4e8b\u5148\u5b9a\u7fa9\u8b8a\u6578\u7684\u578b\u5225\uff1a<\/p>\n\n\n\nstr = \"Hello World!\"\nnumber = 123<\/code><\/pre>\n\n\n\n<\/span>3.2 \u5f37\u578b\u5225<\/span><\/h3>\n\n\n\n\u548c JavaScript \u4e0d\u540c\uff0cRuby \u662f\u5f37\u578b\u5225\u8a9e\u8a00\uff0c\u4e5f\u5c31\u662f\u8aaa\u7576\u5169\u500b\u8b8a\u6578\u578b\u5225\u4e0d\u540c\u6642\u76f8\u52a0 Ruby \u6703\u5831\u932f\uff1a<\/p>\n\n\n\nstr1 = \"Hello \"\nstr2 = \"World\"\np str1 + str2\n# \"Hello World!\"\n\nnumber = 123\np str1 + number\n# Error! no implicit conversion of Integer into String (TypeError)<\/code><\/pre>\n\n\n\n<\/span>3.3 OOP<\/span><\/h3>\n\n\n\nRuby \u662f OOP – Object-Oriented Programming \u7269\u4ef6\u5c0e\u5411\u7684\u7a0b\u5f0f\u8a9e\u8a00\uff0c\u4e5f\u5c31\u662f\u8aaa\u5728 Ruby \u7684\u4e16\u754c\u4e2d\uff0c\u5e7e\u4e4e\u6240\u6709\u7684\u6771\u897f\u90fd\u7531 object \u69cb\u6210\uff0c\u53ef\u4ee5\u5f9e\u6bcf\u500b object \u7684 .class \u5f97\u77e5\u9019\u500b object \u662f\u7531\u54ea\u500b class new \u51fa\u4f86\u7684\uff1a<\/p>\n\n\n\np \"Hello\".class\n# String\n\np 123.class\n# Integer\n\np [].class\n# Array<\/code><\/pre>\n\n\n\n<\/span>4. \u53c3\u8003\u8cc7\u6599<\/span><\/h2>\n\n\n\nRuby Programming Language \u4e2d\u6587\u5b98\u65b9\u7db2\u9801<\/a>Day 22: \u4f7f\u7528 VS Code \u4f86\u958b\u767c Ruby & Rails<\/a>Learn to Code with Ruby<\/a><\/p>\n\n\n\n\n\n\u5982\u679c\u89ba\u5f97\u6211\u7684\u6587\u7ae0\u6709\u5e6b\u52a9\u7684\u8a71\uff0c\u6b61\u8fce\u5e6b\u6211\u7684\u7c89\u5c08\u6309\u8b9a\u54e6~\u8b1d\u8b1d\u4f60\uff01<\/p>\n\n<\/iframe>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6700\u8fd1\u5728\u5b78\u7fd2 Ruby\uff0c\u7a0d\u5fae\u6d88\u5316\u4e00\u4e0b\u5df2\u7d93\u6574\u7406\u597d\u7684\u7b46\u8a18\uff0c\u5e0c\u671b\u751f\u51fa\u4e00\u7cfb\u5217\u6559\u5b78\u6587\uff01<\/p>\n","protected":false},"author":1,"featured_media":2606,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[184,90],"tags":[186],"_links":{"self":[{"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/posts\/2598"}],"collection":[{"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/comments?post=2598"}],"version-history":[{"count":7,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/posts\/2598\/revisions"}],"predecessor-version":[{"id":2622,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/posts\/2598\/revisions\/2622"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/media\/2606"}],"wp:attachment":[{"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/media?parent=2598"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/categories?post=2598"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/tags?post=2598"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
\u5beb Ruby \u6642\u9019\u500b\u5957\u4ef6\u53ef\u4ee5\u652f\u63f4 auto complete<\/p>\n\n\n\n
\u5957\u4ef6\u9023\u7d50\uff1ahttps:\/\/marketplace.visualstudio.com\/items?itemName=castwide.solargraph<\/a><\/p>\n\n\n\n<\/span>2.4 endwise<\/span><\/h3>\n\n\n\n\u5728 Ruby \u4e2d\uff0cmethod, loop, if \u7b49\u7b49\u90fd\u662f\u7528 end \u7d50\u5c3e\uff0c\u9019\u500b\u5957\u4ef6\u6703\u81ea\u52d5\u5e6b\u4f60\u52a0\u4e0a end\uff0c\u514d\u5f97\u5fd8\u8a18\u6253\u4e0a\u9020\u6210\u7de8\u8b6f\u932f\u8aa4\uff1a<\/p>\n\n\n\n<\/a><\/figure><\/div>\n\n\n\n\u5957\u4ef6\u9023\u7d50\uff1ahttps:\/\/marketplace.visualstudio.com\/items?itemName=kaiwood.endwise&ssr=false#overview<\/a><\/p>\n\n\n\n<\/span>2.5 Code Runner<\/span><\/h3>\n\n\n\nCode Runner \u5176\u5be6\u652f\u63f4\u8a31\u591a\u8a9e\u8a00\uff0cRuby \u4e5f\u662f\u5176\u4e2d\u4e4b\u4e00\uff0c\u6211\u89ba\u5f97\u53ef\u4ee5\u7528\u5feb\u6377\u9375(control + option + N)\u5feb\u901f\u7de8\u8b6f Ruby \u6709\u6642\u5019\u6eff\u65b9\u4fbf\u7684<\/p>\n\n\n\n\u5957\u4ef6\u9023\u7d50\uff1ahttps:\/\/marketplace.visualstudio.com\/items?itemName=formulahendry.code-runner<\/a><\/p>\n\n\n\n<\/span>2.6 \u5728 vscode \u57f7\u884c .rb<\/span><\/h3>\n\n\n\n\u5728 vscode \u4e2d\u5beb\u5b8c code \u5f8c\uff0c\u53ef\u4ee5\u76f4\u63a5\u5728 terminal \u7de8\u8b6f\u6a94\u6848\u5f97\u5230\u7d50\u679c\uff1a<\/p>\n\n\n\n# hello-world.rb\nstr = \"Hello World\"\np str<\/code><\/pre>\n\n\n\n\u5728 terminal \u4e2d\u57f7\u884c\uff1a<\/p>\n\n\n\n$ ruby hello-world.rb\n\"Hello World\"<\/code><\/pre>\n\n\n\n\u5c31\u6703\u57f7\u884c\u9019\u500b .rb \u6a94<\/p>\n\n\n\n<\/span>3. Ruby \u4ecb\u7d39<\/span><\/h2>\n\n\n\n<\/span>3.1 \u52d5\u614b\u8a9e\u8a00<\/span><\/h3>\n\n\n\nRuby \u662f\u52d5\u614b\u8a9e\u8a00\uff0c\u4e0d\u9700\u4e8b\u5148\u5b9a\u7fa9\u8b8a\u6578\u7684\u578b\u5225\uff1a<\/p>\n\n\n\nstr = \"Hello World!\"\nnumber = 123<\/code><\/pre>\n\n\n\n<\/span>3.2 \u5f37\u578b\u5225<\/span><\/h3>\n\n\n\n\u548c JavaScript \u4e0d\u540c\uff0cRuby \u662f\u5f37\u578b\u5225\u8a9e\u8a00\uff0c\u4e5f\u5c31\u662f\u8aaa\u7576\u5169\u500b\u8b8a\u6578\u578b\u5225\u4e0d\u540c\u6642\u76f8\u52a0 Ruby \u6703\u5831\u932f\uff1a<\/p>\n\n\n\nstr1 = \"Hello \"\nstr2 = \"World\"\np str1 + str2\n# \"Hello World!\"\n\nnumber = 123\np str1 + number\n# Error! no implicit conversion of Integer into String (TypeError)<\/code><\/pre>\n\n\n\n<\/span>3.3 OOP<\/span><\/h3>\n\n\n\nRuby \u662f OOP – Object-Oriented Programming \u7269\u4ef6\u5c0e\u5411\u7684\u7a0b\u5f0f\u8a9e\u8a00\uff0c\u4e5f\u5c31\u662f\u8aaa\u5728 Ruby \u7684\u4e16\u754c\u4e2d\uff0c\u5e7e\u4e4e\u6240\u6709\u7684\u6771\u897f\u90fd\u7531 object \u69cb\u6210\uff0c\u53ef\u4ee5\u5f9e\u6bcf\u500b object \u7684 .class \u5f97\u77e5\u9019\u500b object \u662f\u7531\u54ea\u500b class new \u51fa\u4f86\u7684\uff1a<\/p>\n\n\n\np \"Hello\".class\n# String\n\np 123.class\n# Integer\n\np [].class\n# Array<\/code><\/pre>\n\n\n\n<\/span>4. \u53c3\u8003\u8cc7\u6599<\/span><\/h2>\n\n\n\nRuby Programming Language \u4e2d\u6587\u5b98\u65b9\u7db2\u9801<\/a>Day 22: \u4f7f\u7528 VS Code \u4f86\u958b\u767c Ruby & Rails<\/a>Learn to Code with Ruby<\/a><\/p>\n\n\n\n\n\n\u5982\u679c\u89ba\u5f97\u6211\u7684\u6587\u7ae0\u6709\u5e6b\u52a9\u7684\u8a71\uff0c\u6b61\u8fce\u5e6b\u6211\u7684\u7c89\u5c08\u6309\u8b9a\u54e6~\u8b1d\u8b1d\u4f60\uff01<\/p>\n\n<\/iframe>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6700\u8fd1\u5728\u5b78\u7fd2 Ruby\uff0c\u7a0d\u5fae\u6d88\u5316\u4e00\u4e0b\u5df2\u7d93\u6574\u7406\u597d\u7684\u7b46\u8a18\uff0c\u5e0c\u671b\u751f\u51fa\u4e00\u7cfb\u5217\u6559\u5b78\u6587\uff01<\/p>\n","protected":false},"author":1,"featured_media":2606,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[184,90],"tags":[186],"_links":{"self":[{"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/posts\/2598"}],"collection":[{"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/comments?post=2598"}],"version-history":[{"count":7,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/posts\/2598\/revisions"}],"predecessor-version":[{"id":2622,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/posts\/2598\/revisions\/2622"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/media\/2606"}],"wp:attachment":[{"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/media?parent=2598"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/categories?post=2598"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/tags?post=2598"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
\u5728 Ruby \u4e2d\uff0cmethod, loop, if \u7b49\u7b49\u90fd\u662f\u7528 end \u7d50\u5c3e\uff0c\u9019\u500b\u5957\u4ef6\u6703\u81ea\u52d5\u5e6b\u4f60\u52a0\u4e0a end\uff0c\u514d\u5f97\u5fd8\u8a18\u6253\u4e0a\u9020\u6210\u7de8\u8b6f\u932f\u8aa4\uff1a<\/p>\n\n\n\n
\u5957\u4ef6\u9023\u7d50\uff1ahttps:\/\/marketplace.visualstudio.com\/items?itemName=kaiwood.endwise&ssr=false#overview<\/a><\/p>\n\n\n\n<\/span>2.5 Code Runner<\/span><\/h3>\n\n\n\nCode Runner \u5176\u5be6\u652f\u63f4\u8a31\u591a\u8a9e\u8a00\uff0cRuby \u4e5f\u662f\u5176\u4e2d\u4e4b\u4e00\uff0c\u6211\u89ba\u5f97\u53ef\u4ee5\u7528\u5feb\u6377\u9375(control + option + N)\u5feb\u901f\u7de8\u8b6f Ruby \u6709\u6642\u5019\u6eff\u65b9\u4fbf\u7684<\/p>\n\n\n\n\u5957\u4ef6\u9023\u7d50\uff1ahttps:\/\/marketplace.visualstudio.com\/items?itemName=formulahendry.code-runner<\/a><\/p>\n\n\n\n<\/span>2.6 \u5728 vscode \u57f7\u884c .rb<\/span><\/h3>\n\n\n\n\u5728 vscode \u4e2d\u5beb\u5b8c code \u5f8c\uff0c\u53ef\u4ee5\u76f4\u63a5\u5728 terminal \u7de8\u8b6f\u6a94\u6848\u5f97\u5230\u7d50\u679c\uff1a<\/p>\n\n\n\n# hello-world.rb\nstr = \"Hello World\"\np str<\/code><\/pre>\n\n\n\n\u5728 terminal \u4e2d\u57f7\u884c\uff1a<\/p>\n\n\n\n$ ruby hello-world.rb\n\"Hello World\"<\/code><\/pre>\n\n\n\n\u5c31\u6703\u57f7\u884c\u9019\u500b .rb \u6a94<\/p>\n\n\n\n<\/span>3. Ruby \u4ecb\u7d39<\/span><\/h2>\n\n\n\n<\/span>3.1 \u52d5\u614b\u8a9e\u8a00<\/span><\/h3>\n\n\n\nRuby \u662f\u52d5\u614b\u8a9e\u8a00\uff0c\u4e0d\u9700\u4e8b\u5148\u5b9a\u7fa9\u8b8a\u6578\u7684\u578b\u5225\uff1a<\/p>\n\n\n\nstr = \"Hello World!\"\nnumber = 123<\/code><\/pre>\n\n\n\n<\/span>3.2 \u5f37\u578b\u5225<\/span><\/h3>\n\n\n\n\u548c JavaScript \u4e0d\u540c\uff0cRuby \u662f\u5f37\u578b\u5225\u8a9e\u8a00\uff0c\u4e5f\u5c31\u662f\u8aaa\u7576\u5169\u500b\u8b8a\u6578\u578b\u5225\u4e0d\u540c\u6642\u76f8\u52a0 Ruby \u6703\u5831\u932f\uff1a<\/p>\n\n\n\nstr1 = \"Hello \"\nstr2 = \"World\"\np str1 + str2\n# \"Hello World!\"\n\nnumber = 123\np str1 + number\n# Error! no implicit conversion of Integer into String (TypeError)<\/code><\/pre>\n\n\n\n<\/span>3.3 OOP<\/span><\/h3>\n\n\n\nRuby \u662f OOP – Object-Oriented Programming \u7269\u4ef6\u5c0e\u5411\u7684\u7a0b\u5f0f\u8a9e\u8a00\uff0c\u4e5f\u5c31\u662f\u8aaa\u5728 Ruby \u7684\u4e16\u754c\u4e2d\uff0c\u5e7e\u4e4e\u6240\u6709\u7684\u6771\u897f\u90fd\u7531 object \u69cb\u6210\uff0c\u53ef\u4ee5\u5f9e\u6bcf\u500b object \u7684 .class \u5f97\u77e5\u9019\u500b object \u662f\u7531\u54ea\u500b class new \u51fa\u4f86\u7684\uff1a<\/p>\n\n\n\np \"Hello\".class\n# String\n\np 123.class\n# Integer\n\np [].class\n# Array<\/code><\/pre>\n\n\n\n<\/span>4. \u53c3\u8003\u8cc7\u6599<\/span><\/h2>\n\n\n\nRuby Programming Language \u4e2d\u6587\u5b98\u65b9\u7db2\u9801<\/a>Day 22: \u4f7f\u7528 VS Code \u4f86\u958b\u767c Ruby & Rails<\/a>Learn to Code with Ruby<\/a><\/p>\n\n\n\n\n\n\u5982\u679c\u89ba\u5f97\u6211\u7684\u6587\u7ae0\u6709\u5e6b\u52a9\u7684\u8a71\uff0c\u6b61\u8fce\u5e6b\u6211\u7684\u7c89\u5c08\u6309\u8b9a\u54e6~\u8b1d\u8b1d\u4f60\uff01<\/p>\n\n<\/iframe>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6700\u8fd1\u5728\u5b78\u7fd2 Ruby\uff0c\u7a0d\u5fae\u6d88\u5316\u4e00\u4e0b\u5df2\u7d93\u6574\u7406\u597d\u7684\u7b46\u8a18\uff0c\u5e0c\u671b\u751f\u51fa\u4e00\u7cfb\u5217\u6559\u5b78\u6587\uff01<\/p>\n","protected":false},"author":1,"featured_media":2606,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[184,90],"tags":[186],"_links":{"self":[{"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/posts\/2598"}],"collection":[{"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/comments?post=2598"}],"version-history":[{"count":7,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/posts\/2598\/revisions"}],"predecessor-version":[{"id":2622,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/posts\/2598\/revisions\/2622"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/media\/2606"}],"wp:attachment":[{"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/media?parent=2598"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/categories?post=2598"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/tags?post=2598"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
Code Runner \u5176\u5be6\u652f\u63f4\u8a31\u591a\u8a9e\u8a00\uff0cRuby \u4e5f\u662f\u5176\u4e2d\u4e4b\u4e00\uff0c\u6211\u89ba\u5f97\u53ef\u4ee5\u7528\u5feb\u6377\u9375(control + option + N)\u5feb\u901f\u7de8\u8b6f Ruby \u6709\u6642\u5019\u6eff\u65b9\u4fbf\u7684<\/p>\n\n\n\n
\u5957\u4ef6\u9023\u7d50\uff1ahttps:\/\/marketplace.visualstudio.com\/items?itemName=formulahendry.code-runner<\/a><\/p>\n\n\n\n<\/span>2.6 \u5728 vscode \u57f7\u884c .rb<\/span><\/h3>\n\n\n\n\u5728 vscode \u4e2d\u5beb\u5b8c code \u5f8c\uff0c\u53ef\u4ee5\u76f4\u63a5\u5728 terminal \u7de8\u8b6f\u6a94\u6848\u5f97\u5230\u7d50\u679c\uff1a<\/p>\n\n\n\n# hello-world.rb\nstr = \"Hello World\"\np str<\/code><\/pre>\n\n\n\n\u5728 terminal \u4e2d\u57f7\u884c\uff1a<\/p>\n\n\n\n$ ruby hello-world.rb\n\"Hello World\"<\/code><\/pre>\n\n\n\n\u5c31\u6703\u57f7\u884c\u9019\u500b .rb \u6a94<\/p>\n\n\n\n<\/span>3. Ruby \u4ecb\u7d39<\/span><\/h2>\n\n\n\n<\/span>3.1 \u52d5\u614b\u8a9e\u8a00<\/span><\/h3>\n\n\n\nRuby \u662f\u52d5\u614b\u8a9e\u8a00\uff0c\u4e0d\u9700\u4e8b\u5148\u5b9a\u7fa9\u8b8a\u6578\u7684\u578b\u5225\uff1a<\/p>\n\n\n\nstr = \"Hello World!\"\nnumber = 123<\/code><\/pre>\n\n\n\n<\/span>3.2 \u5f37\u578b\u5225<\/span><\/h3>\n\n\n\n\u548c JavaScript \u4e0d\u540c\uff0cRuby \u662f\u5f37\u578b\u5225\u8a9e\u8a00\uff0c\u4e5f\u5c31\u662f\u8aaa\u7576\u5169\u500b\u8b8a\u6578\u578b\u5225\u4e0d\u540c\u6642\u76f8\u52a0 Ruby \u6703\u5831\u932f\uff1a<\/p>\n\n\n\nstr1 = \"Hello \"\nstr2 = \"World\"\np str1 + str2\n# \"Hello World!\"\n\nnumber = 123\np str1 + number\n# Error! no implicit conversion of Integer into String (TypeError)<\/code><\/pre>\n\n\n\n<\/span>3.3 OOP<\/span><\/h3>\n\n\n\nRuby \u662f OOP – Object-Oriented Programming \u7269\u4ef6\u5c0e\u5411\u7684\u7a0b\u5f0f\u8a9e\u8a00\uff0c\u4e5f\u5c31\u662f\u8aaa\u5728 Ruby \u7684\u4e16\u754c\u4e2d\uff0c\u5e7e\u4e4e\u6240\u6709\u7684\u6771\u897f\u90fd\u7531 object \u69cb\u6210\uff0c\u53ef\u4ee5\u5f9e\u6bcf\u500b object \u7684 .class \u5f97\u77e5\u9019\u500b object \u662f\u7531\u54ea\u500b class new \u51fa\u4f86\u7684\uff1a<\/p>\n\n\n\np \"Hello\".class\n# String\n\np 123.class\n# Integer\n\np [].class\n# Array<\/code><\/pre>\n\n\n\n<\/span>4. \u53c3\u8003\u8cc7\u6599<\/span><\/h2>\n\n\n\nRuby Programming Language \u4e2d\u6587\u5b98\u65b9\u7db2\u9801<\/a>Day 22: \u4f7f\u7528 VS Code \u4f86\u958b\u767c Ruby & Rails<\/a>Learn to Code with Ruby<\/a><\/p>\n\n\n\n\n\n\u5982\u679c\u89ba\u5f97\u6211\u7684\u6587\u7ae0\u6709\u5e6b\u52a9\u7684\u8a71\uff0c\u6b61\u8fce\u5e6b\u6211\u7684\u7c89\u5c08\u6309\u8b9a\u54e6~\u8b1d\u8b1d\u4f60\uff01<\/p>\n\n<\/iframe>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6700\u8fd1\u5728\u5b78\u7fd2 Ruby\uff0c\u7a0d\u5fae\u6d88\u5316\u4e00\u4e0b\u5df2\u7d93\u6574\u7406\u597d\u7684\u7b46\u8a18\uff0c\u5e0c\u671b\u751f\u51fa\u4e00\u7cfb\u5217\u6559\u5b78\u6587\uff01<\/p>\n","protected":false},"author":1,"featured_media":2606,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[184,90],"tags":[186],"_links":{"self":[{"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/posts\/2598"}],"collection":[{"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/comments?post=2598"}],"version-history":[{"count":7,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/posts\/2598\/revisions"}],"predecessor-version":[{"id":2622,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/posts\/2598\/revisions\/2622"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/media\/2606"}],"wp:attachment":[{"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/media?parent=2598"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/categories?post=2598"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/tags?post=2598"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
\u5728 vscode \u4e2d\u5beb\u5b8c code \u5f8c\uff0c\u53ef\u4ee5\u76f4\u63a5\u5728 terminal \u7de8\u8b6f\u6a94\u6848\u5f97\u5230\u7d50\u679c\uff1a<\/p>\n\n\n\n
# hello-world.rb\nstr = \"Hello World\"\np str<\/code><\/pre>\n\n\n\n\u5728 terminal \u4e2d\u57f7\u884c\uff1a<\/p>\n\n\n\n$ ruby hello-world.rb\n\"Hello World\"<\/code><\/pre>\n\n\n\n\u5c31\u6703\u57f7\u884c\u9019\u500b .rb \u6a94<\/p>\n\n\n\n<\/span>3. Ruby \u4ecb\u7d39<\/span><\/h2>\n\n\n\n<\/span>3.1 \u52d5\u614b\u8a9e\u8a00<\/span><\/h3>\n\n\n\nRuby \u662f\u52d5\u614b\u8a9e\u8a00\uff0c\u4e0d\u9700\u4e8b\u5148\u5b9a\u7fa9\u8b8a\u6578\u7684\u578b\u5225\uff1a<\/p>\n\n\n\nstr = \"Hello World!\"\nnumber = 123<\/code><\/pre>\n\n\n\n<\/span>3.2 \u5f37\u578b\u5225<\/span><\/h3>\n\n\n\n\u548c JavaScript \u4e0d\u540c\uff0cRuby \u662f\u5f37\u578b\u5225\u8a9e\u8a00\uff0c\u4e5f\u5c31\u662f\u8aaa\u7576\u5169\u500b\u8b8a\u6578\u578b\u5225\u4e0d\u540c\u6642\u76f8\u52a0 Ruby \u6703\u5831\u932f\uff1a<\/p>\n\n\n\nstr1 = \"Hello \"\nstr2 = \"World\"\np str1 + str2\n# \"Hello World!\"\n\nnumber = 123\np str1 + number\n# Error! no implicit conversion of Integer into String (TypeError)<\/code><\/pre>\n\n\n\n<\/span>3.3 OOP<\/span><\/h3>\n\n\n\nRuby \u662f OOP – Object-Oriented Programming \u7269\u4ef6\u5c0e\u5411\u7684\u7a0b\u5f0f\u8a9e\u8a00\uff0c\u4e5f\u5c31\u662f\u8aaa\u5728 Ruby \u7684\u4e16\u754c\u4e2d\uff0c\u5e7e\u4e4e\u6240\u6709\u7684\u6771\u897f\u90fd\u7531 object \u69cb\u6210\uff0c\u53ef\u4ee5\u5f9e\u6bcf\u500b object \u7684 .class \u5f97\u77e5\u9019\u500b object \u662f\u7531\u54ea\u500b class new \u51fa\u4f86\u7684\uff1a<\/p>\n\n\n\np \"Hello\".class\n# String\n\np 123.class\n# Integer\n\np [].class\n# Array<\/code><\/pre>\n\n\n\n<\/span>4. \u53c3\u8003\u8cc7\u6599<\/span><\/h2>\n\n\n\nRuby Programming Language \u4e2d\u6587\u5b98\u65b9\u7db2\u9801<\/a>Day 22: \u4f7f\u7528 VS Code \u4f86\u958b\u767c Ruby & Rails<\/a>Learn to Code with Ruby<\/a><\/p>\n\n\n\n\n\n\u5982\u679c\u89ba\u5f97\u6211\u7684\u6587\u7ae0\u6709\u5e6b\u52a9\u7684\u8a71\uff0c\u6b61\u8fce\u5e6b\u6211\u7684\u7c89\u5c08\u6309\u8b9a\u54e6~\u8b1d\u8b1d\u4f60\uff01<\/p>\n\n<\/iframe>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6700\u8fd1\u5728\u5b78\u7fd2 Ruby\uff0c\u7a0d\u5fae\u6d88\u5316\u4e00\u4e0b\u5df2\u7d93\u6574\u7406\u597d\u7684\u7b46\u8a18\uff0c\u5e0c\u671b\u751f\u51fa\u4e00\u7cfb\u5217\u6559\u5b78\u6587\uff01<\/p>\n","protected":false},"author":1,"featured_media":2606,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[184,90],"tags":[186],"_links":{"self":[{"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/posts\/2598"}],"collection":[{"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/comments?post=2598"}],"version-history":[{"count":7,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/posts\/2598\/revisions"}],"predecessor-version":[{"id":2622,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/posts\/2598\/revisions\/2622"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/media\/2606"}],"wp:attachment":[{"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/media?parent=2598"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/categories?post=2598"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/tags?post=2598"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
\u5728 terminal \u4e2d\u57f7\u884c\uff1a<\/p>\n\n\n\n
$ ruby hello-world.rb\n\"Hello World\"<\/code><\/pre>\n\n\n\n\u5c31\u6703\u57f7\u884c\u9019\u500b .rb \u6a94<\/p>\n\n\n\n<\/span>3. Ruby \u4ecb\u7d39<\/span><\/h2>\n\n\n\n<\/span>3.1 \u52d5\u614b\u8a9e\u8a00<\/span><\/h3>\n\n\n\nRuby \u662f\u52d5\u614b\u8a9e\u8a00\uff0c\u4e0d\u9700\u4e8b\u5148\u5b9a\u7fa9\u8b8a\u6578\u7684\u578b\u5225\uff1a<\/p>\n\n\n\nstr = \"Hello World!\"\nnumber = 123<\/code><\/pre>\n\n\n\n<\/span>3.2 \u5f37\u578b\u5225<\/span><\/h3>\n\n\n\n\u548c JavaScript \u4e0d\u540c\uff0cRuby \u662f\u5f37\u578b\u5225\u8a9e\u8a00\uff0c\u4e5f\u5c31\u662f\u8aaa\u7576\u5169\u500b\u8b8a\u6578\u578b\u5225\u4e0d\u540c\u6642\u76f8\u52a0 Ruby \u6703\u5831\u932f\uff1a<\/p>\n\n\n\nstr1 = \"Hello \"\nstr2 = \"World\"\np str1 + str2\n# \"Hello World!\"\n\nnumber = 123\np str1 + number\n# Error! no implicit conversion of Integer into String (TypeError)<\/code><\/pre>\n\n\n\n<\/span>3.3 OOP<\/span><\/h3>\n\n\n\nRuby \u662f OOP – Object-Oriented Programming \u7269\u4ef6\u5c0e\u5411\u7684\u7a0b\u5f0f\u8a9e\u8a00\uff0c\u4e5f\u5c31\u662f\u8aaa\u5728 Ruby \u7684\u4e16\u754c\u4e2d\uff0c\u5e7e\u4e4e\u6240\u6709\u7684\u6771\u897f\u90fd\u7531 object \u69cb\u6210\uff0c\u53ef\u4ee5\u5f9e\u6bcf\u500b object \u7684 .class \u5f97\u77e5\u9019\u500b object \u662f\u7531\u54ea\u500b class new \u51fa\u4f86\u7684\uff1a<\/p>\n\n\n\np \"Hello\".class\n# String\n\np 123.class\n# Integer\n\np [].class\n# Array<\/code><\/pre>\n\n\n\n<\/span>4. \u53c3\u8003\u8cc7\u6599<\/span><\/h2>\n\n\n\nRuby Programming Language \u4e2d\u6587\u5b98\u65b9\u7db2\u9801<\/a>Day 22: \u4f7f\u7528 VS Code \u4f86\u958b\u767c Ruby & Rails<\/a>Learn to Code with Ruby<\/a><\/p>\n\n\n\n\n\n\u5982\u679c\u89ba\u5f97\u6211\u7684\u6587\u7ae0\u6709\u5e6b\u52a9\u7684\u8a71\uff0c\u6b61\u8fce\u5e6b\u6211\u7684\u7c89\u5c08\u6309\u8b9a\u54e6~\u8b1d\u8b1d\u4f60\uff01<\/p>\n\n<\/iframe>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6700\u8fd1\u5728\u5b78\u7fd2 Ruby\uff0c\u7a0d\u5fae\u6d88\u5316\u4e00\u4e0b\u5df2\u7d93\u6574\u7406\u597d\u7684\u7b46\u8a18\uff0c\u5e0c\u671b\u751f\u51fa\u4e00\u7cfb\u5217\u6559\u5b78\u6587\uff01<\/p>\n","protected":false},"author":1,"featured_media":2606,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[184,90],"tags":[186],"_links":{"self":[{"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/posts\/2598"}],"collection":[{"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/comments?post=2598"}],"version-history":[{"count":7,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/posts\/2598\/revisions"}],"predecessor-version":[{"id":2622,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/posts\/2598\/revisions\/2622"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/media\/2606"}],"wp:attachment":[{"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/media?parent=2598"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/categories?post=2598"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/tags?post=2598"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
\u5c31\u6703\u57f7\u884c\u9019\u500b .rb \u6a94<\/p>\n\n\n\n
Ruby \u662f\u52d5\u614b\u8a9e\u8a00\uff0c\u4e0d\u9700\u4e8b\u5148\u5b9a\u7fa9\u8b8a\u6578\u7684\u578b\u5225\uff1a<\/p>\n\n\n\n
str = \"Hello World!\"\nnumber = 123<\/code><\/pre>\n\n\n\n<\/span>3.2 \u5f37\u578b\u5225<\/span><\/h3>\n\n\n\n\u548c JavaScript \u4e0d\u540c\uff0cRuby \u662f\u5f37\u578b\u5225\u8a9e\u8a00\uff0c\u4e5f\u5c31\u662f\u8aaa\u7576\u5169\u500b\u8b8a\u6578\u578b\u5225\u4e0d\u540c\u6642\u76f8\u52a0 Ruby \u6703\u5831\u932f\uff1a<\/p>\n\n\n\nstr1 = \"Hello \"\nstr2 = \"World\"\np str1 + str2\n# \"Hello World!\"\n\nnumber = 123\np str1 + number\n# Error! no implicit conversion of Integer into String (TypeError)<\/code><\/pre>\n\n\n\n<\/span>3.3 OOP<\/span><\/h3>\n\n\n\nRuby \u662f OOP – Object-Oriented Programming \u7269\u4ef6\u5c0e\u5411\u7684\u7a0b\u5f0f\u8a9e\u8a00\uff0c\u4e5f\u5c31\u662f\u8aaa\u5728 Ruby \u7684\u4e16\u754c\u4e2d\uff0c\u5e7e\u4e4e\u6240\u6709\u7684\u6771\u897f\u90fd\u7531 object \u69cb\u6210\uff0c\u53ef\u4ee5\u5f9e\u6bcf\u500b object \u7684 .class \u5f97\u77e5\u9019\u500b object \u662f\u7531\u54ea\u500b class new \u51fa\u4f86\u7684\uff1a<\/p>\n\n\n\np \"Hello\".class\n# String\n\np 123.class\n# Integer\n\np [].class\n# Array<\/code><\/pre>\n\n\n\n<\/span>4. \u53c3\u8003\u8cc7\u6599<\/span><\/h2>\n\n\n\nRuby Programming Language \u4e2d\u6587\u5b98\u65b9\u7db2\u9801<\/a>Day 22: \u4f7f\u7528 VS Code \u4f86\u958b\u767c Ruby & Rails<\/a>Learn to Code with Ruby<\/a><\/p>\n\n\n\n\n\n\u5982\u679c\u89ba\u5f97\u6211\u7684\u6587\u7ae0\u6709\u5e6b\u52a9\u7684\u8a71\uff0c\u6b61\u8fce\u5e6b\u6211\u7684\u7c89\u5c08\u6309\u8b9a\u54e6~\u8b1d\u8b1d\u4f60\uff01<\/p>\n\n<\/iframe>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6700\u8fd1\u5728\u5b78\u7fd2 Ruby\uff0c\u7a0d\u5fae\u6d88\u5316\u4e00\u4e0b\u5df2\u7d93\u6574\u7406\u597d\u7684\u7b46\u8a18\uff0c\u5e0c\u671b\u751f\u51fa\u4e00\u7cfb\u5217\u6559\u5b78\u6587\uff01<\/p>\n","protected":false},"author":1,"featured_media":2606,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[184,90],"tags":[186],"_links":{"self":[{"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/posts\/2598"}],"collection":[{"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/comments?post=2598"}],"version-history":[{"count":7,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/posts\/2598\/revisions"}],"predecessor-version":[{"id":2622,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/posts\/2598\/revisions\/2622"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/media\/2606"}],"wp:attachment":[{"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/media?parent=2598"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/categories?post=2598"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/tags?post=2598"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
\u548c JavaScript \u4e0d\u540c\uff0cRuby \u662f\u5f37\u578b\u5225\u8a9e\u8a00\uff0c\u4e5f\u5c31\u662f\u8aaa\u7576\u5169\u500b\u8b8a\u6578\u578b\u5225\u4e0d\u540c\u6642\u76f8\u52a0 Ruby \u6703\u5831\u932f\uff1a<\/p>\n\n\n\n
str1 = \"Hello \"\nstr2 = \"World\"\np str1 + str2\n# \"Hello World!\"\n\nnumber = 123\np str1 + number\n# Error! no implicit conversion of Integer into String (TypeError)<\/code><\/pre>\n\n\n\n<\/span>3.3 OOP<\/span><\/h3>\n\n\n\nRuby \u662f OOP – Object-Oriented Programming \u7269\u4ef6\u5c0e\u5411\u7684\u7a0b\u5f0f\u8a9e\u8a00\uff0c\u4e5f\u5c31\u662f\u8aaa\u5728 Ruby \u7684\u4e16\u754c\u4e2d\uff0c\u5e7e\u4e4e\u6240\u6709\u7684\u6771\u897f\u90fd\u7531 object \u69cb\u6210\uff0c\u53ef\u4ee5\u5f9e\u6bcf\u500b object \u7684 .class \u5f97\u77e5\u9019\u500b object \u662f\u7531\u54ea\u500b class new \u51fa\u4f86\u7684\uff1a<\/p>\n\n\n\np \"Hello\".class\n# String\n\np 123.class\n# Integer\n\np [].class\n# Array<\/code><\/pre>\n\n\n\n<\/span>4. \u53c3\u8003\u8cc7\u6599<\/span><\/h2>\n\n\n\nRuby Programming Language \u4e2d\u6587\u5b98\u65b9\u7db2\u9801<\/a>Day 22: \u4f7f\u7528 VS Code \u4f86\u958b\u767c Ruby & Rails<\/a>Learn to Code with Ruby<\/a><\/p>\n\n\n\n\n\n\u5982\u679c\u89ba\u5f97\u6211\u7684\u6587\u7ae0\u6709\u5e6b\u52a9\u7684\u8a71\uff0c\u6b61\u8fce\u5e6b\u6211\u7684\u7c89\u5c08\u6309\u8b9a\u54e6~\u8b1d\u8b1d\u4f60\uff01<\/p>\n\n<\/iframe>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6700\u8fd1\u5728\u5b78\u7fd2 Ruby\uff0c\u7a0d\u5fae\u6d88\u5316\u4e00\u4e0b\u5df2\u7d93\u6574\u7406\u597d\u7684\u7b46\u8a18\uff0c\u5e0c\u671b\u751f\u51fa\u4e00\u7cfb\u5217\u6559\u5b78\u6587\uff01<\/p>\n","protected":false},"author":1,"featured_media":2606,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[184,90],"tags":[186],"_links":{"self":[{"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/posts\/2598"}],"collection":[{"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/comments?post=2598"}],"version-history":[{"count":7,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/posts\/2598\/revisions"}],"predecessor-version":[{"id":2622,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/posts\/2598\/revisions\/2622"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/media\/2606"}],"wp:attachment":[{"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/media?parent=2598"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/categories?post=2598"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/tags?post=2598"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
Ruby \u662f OOP – Object-Oriented Programming \u7269\u4ef6\u5c0e\u5411\u7684\u7a0b\u5f0f\u8a9e\u8a00\uff0c\u4e5f\u5c31\u662f\u8aaa\u5728 Ruby \u7684\u4e16\u754c\u4e2d\uff0c\u5e7e\u4e4e\u6240\u6709\u7684\u6771\u897f\u90fd\u7531 object \u69cb\u6210\uff0c\u53ef\u4ee5\u5f9e\u6bcf\u500b object \u7684 .class \u5f97\u77e5\u9019\u500b object \u662f\u7531\u54ea\u500b class new \u51fa\u4f86\u7684\uff1a<\/p>\n\n\n\n
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Ruby Programming Language \u4e2d\u6587\u5b98\u65b9\u7db2\u9801<\/a>Day 22: \u4f7f\u7528 VS Code \u4f86\u958b\u767c Ruby & Rails<\/a>Learn to Code with Ruby<\/a><\/p>\n\n\n\n\n\n\u5982\u679c\u89ba\u5f97\u6211\u7684\u6587\u7ae0\u6709\u5e6b\u52a9\u7684\u8a71\uff0c\u6b61\u8fce\u5e6b\u6211\u7684\u7c89\u5c08\u6309\u8b9a\u54e6~\u8b1d\u8b1d\u4f60\uff01<\/p>\n\n<\/iframe>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6700\u8fd1\u5728\u5b78\u7fd2 Ruby\uff0c\u7a0d\u5fae\u6d88\u5316\u4e00\u4e0b\u5df2\u7d93\u6574\u7406\u597d\u7684\u7b46\u8a18\uff0c\u5e0c\u671b\u751f\u51fa\u4e00\u7cfb\u5217\u6559\u5b78\u6587\uff01<\/p>\n","protected":false},"author":1,"featured_media":2606,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[184,90],"tags":[186],"_links":{"self":[{"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/posts\/2598"}],"collection":[{"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/comments?post=2598"}],"version-history":[{"count":7,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/posts\/2598\/revisions"}],"predecessor-version":[{"id":2622,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/posts\/2598\/revisions\/2622"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/media\/2606"}],"wp:attachment":[{"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/media?parent=2598"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/categories?post=2598"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/jimmyswebnote.com\/wp-json\/wp\/v2\/tags?post=2598"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
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