{"id":12879,"date":"2016-12-12T06:14:14","date_gmt":"2016-12-11T21:14:14","guid":{"rendered":"http:\/\/www.sejuku.net\/blog\/?p=12879"},"modified":"2024-05-06T11:39:55","modified_gmt":"2024-05-06T02:39:55","slug":"%e3%82%88%e3%81%8f%e9%96%93%e9%81%95%e3%81%88%e3%82%8bruby%e3%80%8c%e5%a4%89%e6%95%b0%e3%80%8d%e3%81%ae%e7%a8%ae%e9%a1%9e%e3%81%a8%e9%81%95%e3%81%84%e6%97%a9%e8%a6%8b%e8%a1%a8%e3%80%90%e5%ae%a3","status":"publish","type":"post","link":"https:\/\/www.sejuku.net\/blog\/12879","title":{"rendered":"\u3010Ruby\u5165\u9580\u3011\u5909\u6570\u306e\u6271\u3044\u65b9\u307e\u3068\u3081\uff5c\u30af\u30e9\u30b9\u30fb\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u30fb\u30b0\u30ed\u30fc\u30d0\u30eb"},"content":{"rendered":"<p>Ruby\u3092\u5b66\u7fd2\u3057\u3066\u3044\u308b\u6642\u306b\u3001\u5909\u6570\u306e\u9055\u3044\u3084\u7a2e\u985e\u306a\u3069\u3067\u60a9\u3093\u3060\u3053\u3068\u306f\u3042\u308a\u307e\u305b\u3093\u304b\uff1f<\/p>\n<p><div class=\"box_voice\"><b>\u3069\u3093\u306a\u5834\u9762\u3067\u4f7f\u3046\u5909\u6570\u306a\u306e\u304b\uff1f<br \/>\n\u81ea\u5206\u3067\u66f8\u3044\u305f\u30b3\u30fc\u30c9\u306b\u5408\u3063\u3066\u3044\u308b\u5909\u6570\u306a\u306e\u304b\uff1f<\/b><\/div><\/p>\n<p>\u8ff7\u3063\u3066\u3057\u307e\u3046\u3053\u3068\u3082\u3042\u308a\u307e\u3059\u3088\u306d\u3002<\/p>\n<p>\u305d\u3053\u3067\u3001\u3053\u3053\u3067\u306fRuby\u3067\u4f7f\u308f\u308c\u3066\u3044\u308b\u4ee3\u8868\u7684\u306a\u5909\u6570\u306e\u7279\u5fb4\u3084\u9055\u3044\u306a\u3069\u3092\u307e\u3068\u3081\u307e\u3057\u305f\u3002\u3088\u304f\u4f7f\u308f\u308c\u308b\u5909\u6570\u306e\u4e2d\u306b\u306f\u30b9\u30b3\u30fc\u30d7\u304c\u5206\u304b\u308a\u3065\u3089\u304b\u3063\u305f\u308a\u3001\u7d1b\u3089\u308f\u3057\u3044\u3082\u306e\u3082\u3042\u308b\u306e\u3067\u3001\u5b66\u7fd2\u4e2d\u306e\u65b9\u306b\u3082\u308f\u304b\u308a\u3084\u3059\u304f\u8aac\u660e\u3057\u3066\u3044\u304d\u307e\u3059\uff01<\/p>\n<h2>\u5909\u6570\u3068\u306f<\/h2>\n<p>\u5909\u6570\u3068\u306f\u3001<b>\u30d7\u30ed\u30b0\u30e9\u30e0\u3067\u4f7f\u7528\u3059\u308b\u5024\u3092\u4e88\u3081\u683c\u7d0d\u3057\u3066\u304a\u3044\u305f\u308a\u3001\u6f14\u7b97\u7d50\u679c\u3067\u5f97\u3089\u308c\u305f\u5024\u3092\u683c\u7d0d\u3059\u308b\u7528\u9014\u3067\u4f7f\u308f\u308c\u308b\u7bb1\u306e\u3088\u3046\u306a\u3082\u306e<\/b>\u3067\u3059\u3002<\/p>\n<p>Ruby\u306b\u304a\u3051\u308b\u4ee3\u8868\u7684\u306a\u5909\u6570\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3059\u3002<br \/>\n<div class=\"box01\"><\/p>\n<ul>\n<li><b>\u30ed\u30fc\u30ab\u30eb\u5909\u6570<\/b><\/li>\n<li><b>\u5b9a\u6570<\/b><\/li>\n<li><b>\u30b0\u30ed\u30fc\u30d0\u30eb\u5909\u6570<\/b><\/li>\n<li><b>\u30d6\u30ed\u30c3\u30af\u5909\u6570<\/b><\/li>\n<li><b>\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u5909\u6570<\/b><\/li>\n<li><b>\u30af\u30e9\u30b9\u5909\u6570<\/b><\/li>\n<li><b>\u30af\u30e9\u30b9\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u5909\u6570<\/b><\/li>\n<\/ul>\n<p><\/div><br \/>\n\u30b9\u30b3\u30fc\u30d7\u3068\u3044\u3046\u8a00\u8449\u304c\u5ea6\u3005\u3067\u3066\u304d\u307e\u3059\u304c\u3001\u30b9\u30b3\u30fc\u30d7\u3068\u306f\u305d\u306e\u5909\u6570\u304c\u4f7f\u7528\u53ef\u80fd\u306a\u7bc4\u56f2\u306e\u3053\u3068\u3067\u3059\u3002\u305d\u306e\u305f\u3081\u3001<b>\u5909\u6570\u306e\u7a2e\u985e\u306b\u3088\u3063\u3066\u30b9\u30b3\u30fc\u30d7\uff08\u53c2\u7167\u3067\u304d\u308b\u7bc4\u56f2\uff09\u304c\u7570\u306a\u308b<\/b>\u306e\u3067\u6ce8\u610f\u304c\u5fc5\u8981\u3067\u3059\u3002<\/p>\n<p>\u6b21\u9805\u3088\u308a\u305d\u308c\u305e\u308c\u306e\u5909\u6570\u306b\u3064\u3044\u3066\u306e\u4f7f\u3044\u65b9\u3084\u30b9\u30b3\u30fc\u30d7\u306b\u3064\u3044\u3066\u8aac\u660e\u3057\u3066\u3044\u304d\u307e\u3059<\/p>\n<h2>\u30ed\u30fc\u30ab\u30eb\u5909\u6570<\/h2>\n<p>\u30ed\u30fc\u30ab\u30eb\u5909\u6570\u306f\u5909\u6570\u306e\u4e2d\u3067\u4e00\u756a\u3088\u304f\u4f7f\u308f\u308c\u307e\u3059\u3002\u57fa\u672c\u3068\u306a\u308b\u5909\u6570\u306a\u306e\u3067\u3057\u3063\u304b\u308a\u7406\u89e3\u3057\u3066\u304a\u304f\u3088\u3046\u306b\u3057\u307e\u3057\u3087\u3046\uff01<\/p>\n<h4>\u5ba3\u8a00<\/h4>\n<p>\u5909\u6570\u540d\u306b\u306f\u82f1\u6570\u5b57\u3068_\uff08\u30a2\u30f3\u30c0\u30fc\u30d0\u30fc\uff09\u3092\u4f7f\u3046\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u305f\u3060\u3057\u3001\u5148\u982d\u306b\u6570\u5b57\u3092\u4f7f\u3046\u3053\u3068\u306f\u3067\u304d\u307e\u305b\u3093\u3002\u307e\u305f\u3001<b>\u5ba3\u8a00\u3068\u521d\u671f\u5316\u3092\u540c\u6642\u306b\u884c\u3046<\/b>\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u6163\u7fd2\u3068\u3057\u3066\u3001\u5168\u3066\u5c0f\u6587\u5b57\u3092\u4f7f\u3044\u307e\u3059\u3002<\/p>\n<pre class=\"lang:default decode:true \">samurai = \"ruby\" # \u30a2\u30eb\u30d5\u30a1\u30d9\u30c3\u30c8\u306e\u5c0f\u6587\u5b57\r\nsamurai_1 = \"ruby\" # \u6570\u5b57\u3082OK\r\n\r\n#\u6570\u5b57\u3067\u59cb\u3081\u3066\u306f\u3044\u3051\u306a\u3044\r\n1_samurai = \"ruby\" #=&gt; SyntaxError\r\n\r\n#\u5ba3\u8a00\u306e\u307f\u306f\u30a8\u30e9\u30fc\u3068\u306a\u308b\r\nsamurai #=&gt; NameError: undefined local variable or method `samurai' for main:Object\r\n<\/pre>\n<h4>\u30b9\u30b3\u30fc\u30d7<\/h4>\n<p>\u30e1\u30bd\u30c3\u30c9\u3001\u30af\u30e9\u30b9\u306a\u3069\u306e<b>\u5b9a\u7fa9\u3055\u308c\u305f\u5834\u6240\u306e\u7bc4\u56f2\u5185\u3067\u306e\u307f\u4f7f\u7528\u53ef\u80fd<\/b>\u3067\u3059\u3002\u30af\u30e9\u30b9\u3084\u30e1\u30bd\u30c3\u30c9\u3092\u8d85\u3048\u3066\u306e\u53c2\u7167\u306f\u3067\u304d\u306a\u3044\u306e\u3067\u5b9a\u7fa9\u3055\u308c\u305f\u5834\u6240\u4ee5\u5916\u304b\u3089\u53c2\u7167\u3092\u3059\u308b\u3068\u30a8\u30e9\u30fc\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<pre class=\"lang:default decode:true \">class Cat\r\n  name = \"\u306d\u3053\"\r\n   def catName\r\n   puts name\r\n end\r\nend\r\ncat = Cat.new\r\ncat.catName\r\n<\/pre>\n<p><strong>[\u5b9f\u884c\u7d50\u679c]<\/strong><\/p>\n<pre>undefined local variable or method `name'\u3000\r\n<\/pre>\n<h2>\u5b9a\u6570<\/h2>\n<h4>\u5ba3\u8a00<\/h4>\n<p>\u30eb\u30fc\u30eb\u306f\u30ed\u30fc\u30ab\u30eb\u5909\u6570\u3068\u4e00\u7dd2\u3067\u3059\u304c\u3001\u30a2\u30eb\u30d5\u30a1\u30d9\u30c3\u30c8\u5927\u6587\u5b57\u3092\u7528\u3044\u307e\u3059\u3002\u6163\u7fd2\u3068\u3057\u3066\u3001<b>\u5b9a\u6570\u306f\u5168\u3066\u5927\u6587\u5b57<\/b>\u3067\u5ba3\u8a00\u3092\u3057\u307e\u3059\u3002<\/p>\n<p>\u6700\u521d\u306e\u6587\u5b57\u3060\u3051\u5927\u6587\u5b57\u306b\u3059\u308b\u300c\u30ad\u30e3\u30e1\u30eb\u30b1\u30fc\u30b9\u300d\u306f\u30af\u30e9\u30b9\u540d\u306a\u3069\u306b\u7528\u3044\u307e\u3059\u3002<\/p>\n<pre class=\"lang:default decode:true \">SAMURAI = \"ruby\"\r\n\r\nSamurai = \"ruby\" # \u30af\u30e9\u30b9\u540d\u3068\u7d1b\u3089\u308f\u3057\u3044\u306e\u3067\u5b9a\u6570\u3068\u3057\u3066\u306f\u4f7f\u308f\u308c\u306a\u3044\r\n<\/pre>\n<p>\u4e00\u822c\u7684\u306a\u30d7\u30ed\u30b0\u30e9\u30df\u30f3\u30b0\u8a00\u8a9e\u3067\u306f\u3001\u5b9a\u6570\u306f\u5909\u66f4\u4e0d\u53ef\u306e\u5024\u3067\u3059\u304c\u3001Ruby\u306e\u5b9a\u6570\u306f\u8b66\u544a\u3092\u51fa\u3059\u3060\u3051\u3067\u5024\u306e\u5909\u66f4\u306f\u53ef\u80fd\u3067\u3059\u3002\u0010<\/p>\n<pre class=\"lang:default decode:true \">SAMURAI = \"ruby\"\r\nSAMURAI = \"change value\"\r\n<\/pre>\n<p>[\u5b9f\u884c\u7d50\u679c]<\/p>\n<pre>(pry):2: warning: already initialized constant SAMURAI\r\n(pry):1: warning: previous definition of SAMURAI was here\r\n=&gt; \"change value\"\r\n<\/pre>\n<p>\u5909\u66f4\u4e0d\u53ef\u306e\u5024\u306b\u3057\u305f\u3044\u5834\u5408\u306f\u3001\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u306b\u9650\u308afreeze\u30e1\u30bd\u30c3\u30c9\u3092\u4f7f\u3046\u3053\u3068\u3067\u53ef\u80fd\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<h4>\u30b9\u30b3\u30fc\u30d7<\/h4>\n<p>\u5b9a\u7fa9\u3055\u308c\u305f\u30af\u30e9\u30b9\u3084\u30e2\u30b8\u30e5\u30fc\u30eb\u5185\u3084\u30af\u30e9\u30b9\u3092\u7d99\u627f\u3057\u3066\u3044\u308b\u30af\u30e9\u30b9\u306a\u3069\u3067\u53c2\u7167\u3067\u304d\u307e\u3059\u3002<\/p>\n<pre class=\"lang:default decode:true \">SAMURAI = 3.14\r\nputs SAMRAUI        \r\n<\/pre>\n<p>[\u5b9f\u884c\u7d50\u679c]<\/p>\n<pre>3.14\r\n<\/pre>\n<p>\u30af\u30e9\u30b9\u306e\u4e2d\u3067\u5b9a\u7fa9\u53ef\u80fd\u306a\u306e\u3067\u540c\u3058\u5b9a\u6570\u540d\u3067\u3082\u30af\u30e9\u30b9\u3054\u3068\u306b\u9055\u3046\u5024\u3092\u6301\u3064\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u5b9a\u6570\u306f\u30e1\u30bd\u30c3\u30c9\u306e\u4e2d\u3067\u306f\u5b9a\u7fa9\u3067\u304d\u307e\u305b\u3093\u3002<\/p>\n<h2>\u30b0\u30ed\u30fc\u30d0\u30eb\u5909\u6570<\/h2>\n<h4>\u5ba3\u8a00<\/h4>\n<p>\u5909\u6570\u540d\u306e\u4e00\u756a\u521d\u3081\u306b\u300c$\u300d\u3092\u3064\u3051\u308b\u3053\u3068\u3067\u30b0\u30ed\u30fc\u30d0\u30eb\u5909\u6570\u306f\u5ba3\u8a00\u3067\u304d\u307e\u3059\u3002<\/p>\n<pre class=\"lang:default decode:true \">$global = \"ruby\"\r\n<\/pre>\n<h4>\u30b9\u30b3\u30fc\u30d7<\/h4>\n<p>\u30ed\u30fc\u30ab\u30eb\u5909\u6570\u306e\u9006\u3067\u3001<b>\u30e1\u30bd\u30c3\u30c9\u3084\u30af\u30e9\u30b9\u3092\u8d85\u3048\u3066\u53c2\u7167\u3067\u304d\u308b<\/b>\u5909\u6570\u3067\u3059\u3002\u5b9a\u7fa9\u3057\u305f\u5834\u6240\u306b\u3068\u3089\u308f\u308c\u305a\u3001\u30d7\u30ed\u30b0\u30e9\u30e0\u306e\u3069\u3053\u304b\u3089\u3067\u3082\u53c2\u7167\u3084\u5909\u66f4\u304c\u3067\u304d\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u3001\u540d\u524d\u3092\u4ed8\u3051\u308b\u969b\u306b\u306f\u91cd\u8907\u3057\u306a\u3044\u3088\u3046\u306b\u6ce8\u610f\u304c\u5fc5\u8981\u3067\u3059\u3002<\/p>\n<pre class=\"lang:default decode:true \">$global = \"global\"\r\n\r\ndef greet\r\n  p $global\r\nend\r\n\r\ngreet<\/pre>\n<p>[\u5b9f\u884c\u7d50\u679c]<\/p>\n<pre>\"global\"\r\n<\/pre>\n<h2>\u30d6\u30ed\u30c3\u30af\u5909\u6570<\/h2>\n<h4>\u5ba3\u8a00<\/h4>\n<p>\u30d6\u30ed\u30c3\u30af\u5185\u300c{}\uff08\u30d6\u30ec\u30fc\u30b9\uff09\u307e\u305f\u306fdo ~ end\u5185\u300d\u3067\u300c|\u300d\u3067\u56f2\u3080\u3053\u3068\u3067\u5ba3\u8a00\u3067\u304d\u307e\u3059\u3002<br \/>\n\u8a00\u8449\u3067\u8aac\u660e\u3059\u308b\u3068\u5c11\u3057\u308f\u304b\u308a\u306b\u304f\u3044\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u304c\u3001\u4e0b\u306e\u4f8b\u306e\u300ci\u3068x\u300d\u306e\u3053\u3068\u3092\u6307\u3057\u307e\u3059\u3002<\/p>\n<pre class=\"lang:default decode:true \">3.times do |i, x|  # \u8907\u6570\u884c\u3067\u66f8\u304f\u5834\u5408\r\nend\r\n\r\n[1, 2, 3].inject {|sum, n| sum + n}  # 1\u884c\u3067\u66f8\u304f\u5834\u5408\r\n<\/pre>\n<h4>\u30b9\u30b3\u30fc\u30d7<\/h4>\n<p>\u30d6\u30ed\u30c3\u30af\u5b9f\u884c\u306e\u969b\u306b\u30d6\u30ed\u30c3\u30af\u5185\u3067\u4f7f\u308f\u308c\u308b\u4e00\u6642\u7684\u306a\u5909\u6570\u3067\u3059\u3002\u7e70\u308a\u8fd4\u3057\u306a\u3069\u306e\u51e6\u7406\u3092\u3059\u308b\u969b\u3001\u3053\u306e\u300c\u30d6\u30ed\u30c3\u30af\u5909\u6570\u300d\u306b\u5024\u3092\u4ee3\u5165\u3057\u306a\u304c\u3089\u51e6\u7406\u3092\u3057\u307e\u3059\u3002\u30d6\u30ed\u30c3\u30af\u5185\u304b\u3089\u306e\u307f\u53c2\u7167\u53ef\u80fd\u306a\u5909\u6570\u306a\u306e\u3067\u30d6\u30ed\u30c3\u30af\u5c02\u7528\u306e\u5909\u6570\u3068\u8a00\u3048\u307e\u3059\u3002<\/p>\n<pre class=\"lang:default decode:true \">a = 99\r\n3.times do |i, x=a|\r\n  a = i*10\r\n  p x\r\nend<\/pre>\n<p><strong>[\u5b9f\u884c\u7d50\u679c]<\/strong><\/p>\n<pre>10\r\n10\r\n11\r\n<\/pre>\n<h2>\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u5909\u6570<\/h2>\n<h4>\u5ba3\u8a00<\/h4>\n<p>\u5909\u6570\u306e\u521d\u3081\u306b\u300c@\u300d\u3092\u3064\u3051\u308b\u3053\u3068\u3067\u5ba3\u8a00\u3092\u884c\u3046\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<pre class=\"lang:default decode:true \">@name = \"ruby\"\r\n<\/pre>\n<h4>\u30b9\u30b3\u30fc\u30d7<\/h4>\n<p><b>\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u30e1\u30bd\u30c3\u30c9\u5185\u3067\u306e\u307f\u4f7f\u7528\u3067\u304d\u308b<\/b>\u5909\u6570\u3067\u3059\u3002\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3054\u3068\u306b\u7570\u306a\u308b\u5024\u3092\u6301\u3064\u3053\u3068\u304c\u3067\u304d\u3001\u30e1\u30bd\u30c3\u30c9\u3092\u8d85\u3048\u3066\u53c2\u7167\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<pre class=\"lang:default decode:true \">class User\r\n  def initialize(name)\r\n    @name = name\r\n  end\r\n\r\n  def put_name\r\n    p @name\r\n  end\r\nend\r\n\r\nuser1 = User.new(\"taroo\")\r\nuser2 = User.new(\"hanako\")\r\nuser1.put_name\u3000\r\nuser2.put_name\r\n<\/pre>\n<p>[\u5b9f\u884c\u7d50\u679c]<\/p>\n<pre>\"taroo\"\r\n\"hanako\"\r\n<\/pre>\n<h2>\u30af\u30e9\u30b9\u5909\u6570<\/h2>\n<h4>\u5ba3\u8a00<\/h4>\n<p>\u5909\u6570\u76ee\u306e\u521d\u3081\u306b\u300c@@\u300d\u3092\u3064\u3051\u308b\u3053\u3068\u3067\u5ba3\u8a00\u3067\u304d\u307e\u3059\u3002<\/p>\n<pre class=\"lang:default decode:true \">@@samurai = \"ruby\"\r\n<\/pre>\n<h4>\u30b9\u30b3\u30fc\u30d7<\/h4>\n<p>\u5b9a\u7fa9\u3055\u308c\u305f\u30af\u30e9\u30b9\u5185\u3067\u5171\u6709\u3059\u308b\u5024\u3092\u6271\u3046\u3053\u3068\u306e\u3067\u304d\u308b\u5909\u6570\u3067\u3059\u3002\u4ed6\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3067\u4f7f\u7528\u3057\u3066\u3082\u540c\u3058\u30af\u30e9\u30b9\u5185\u3067\u3042\u308c\u3070\u5171\u901a\u306e\u5024\u3068\u3057\u3066\u6271\u308f\u308c\u308b\u306e\u3067\u30af\u30e9\u30b9\u5185\u3067\u306f\u4e00\u3064\u306e\u5024\u3057\u304b\u6271\u3046\u3053\u3068\u304c\u3067\u304d\u307e\u305b\u3093\u3002\u30af\u30e9\u30b9\u3092\u7d99\u627f\u3057\u305f\u30af\u30e9\u30b9\u304b\u3089\u3082\u53c2\u7167\u53ef\u80fd\u3067\u3059\u3002<\/p>\n<pre class=\"lang:ruby decode:true \">class Samurai\r\n  @@samurai = 1\r\n  def foo\r\n    puts @@samurai\r\n  end\r\nend\r\n\r\nperson1 = Samurai.new\r\nperson1.foo<\/pre>\n<p>[\u5b9f\u884c\u7d50\u679c]<\/p>\n<pre>1\r\n<\/pre>\n<pre class=\"lang:ruby decode:true \">class Bushi &lt; Samurai\r\n  def hoge\r\n    puts @@samurai\r\n  end\r\nend\r\n\r\nperson2 = Bushi.new\r\nperson2.hoge<\/pre>\n<p>[\u5b9f\u884c\u7d50\u679c]<\/p>\n<pre>1\r\n<\/pre>\n<p>\u3053\u306e\u3088\u3046\u306bSamurai\u30af\u30e9\u30b9\u3092\u7d99\u627f\u3057\u305fBushi\u30af\u30e9\u30b9\u3067\u3082\u304d\u3061\u3093\u3068\u30af\u30e9\u30b9\u5909\u6570\u306b\u30a2\u30af\u30bb\u30b9\u3067\u304d\u3066\u3044\u307e\u3059\u3002<\/p>\n<p>\u30af\u30e9\u30b9\u306e\u7d99\u627f\u304c\u3069\u3046\u3044\u3046\u3053\u3068\u306a\u306e\u304b\u308f\u304b\u3089\u306a\u3044\u65b9\u306f\u3053\u3061\u3089\u306e\u8a18\u4e8b\u3092\u53c2\u8003\u306b\u3057\u3066\u307f\u3066\u304f\u3060\u3055\u3044\u3002<br \/>\n            <a href=\"https:\/\/www.sejuku.net\/blog\/16094\" class=\"blog-card-anchor\">\n                <div class=\"blog-card\">\n                <div class=\"blog-card-content\">\n                    <div class=\"blog-card-thumbnail\">\n                    <img decoding=\"async\" class=\"blog-card-thumbnail-img\" src=\"https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2017\/08\/image-621-150x86.jpg\">\n                    <\/div>\n                    <div class=\"blog-card-title-wrap\">\n                    <div class=\"blog-card-title\">\u3010Ruby\u5165\u9580\u3011\u30af\u30e9\u30b9\u306e\u7d99\u627f\u307e\u3068\u3081<\/div>\n                    <div class=\"blog-card-update-date\">\u66f4\u65b0\u65e5\uff1a2024\u5e745\u67086\u65e5<\/div>\n                    <\/div>\n                <\/div>\n                <\/div>\n            <\/a>\n            <\/p>\n<h2>\u30af\u30e9\u30b9\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u5909\u6570<\/h2>\n<h4>\u5ba3\u8a00<\/h4>\n<p>\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u5909\u6570\u3068\u540c\u3058\u304f\u300c@\u300d\u3067\u306f\u3058\u307e\u308a\u307e\u3059\u304c\u3001<b>\u5b9a\u7fa9\u3055\u308c\u308b\u5834\u6240\u306b\u3088\u308a\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u5909\u6570\u3068\u533a\u5225<\/b>\u3055\u308c\u307e\u3059\u3002<\/p>\n<pre class=\"lang:default decode:true \">@class_instance_var = \"ruby\"\r\n<\/pre>\n<h4>\u30b9\u30b3\u30fc\u30d7<\/h4>\n<p>\u30af\u30e9\u30b9\u5909\u6570\u3068\u540c\u69d8\u306b\u30af\u30e9\u30b9\u5185\u3067\u5b9a\u7fa9\u3057\u3001\u5b9a\u7fa9\u3055\u308c\u305f\u30af\u30e9\u30b9\u5185\u3067\u3057\u304b\u53c2\u7167\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u305b\u3093\u3002<\/p>\n<p>\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u5909\u6570\u3068\u540c\u3058\u304f\uff20\u3092\u524d\u7f6e\u3057\u307e\u3059\u304c\u3001\u30af\u30e9\u30b9\u3067\u5b9a\u7fa9\u3055\u308c\u3066\u3044\u308b\u5834\u5408\u306f\u30af\u30e9\u30b9\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u5909\u6570\u3001\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u5185\u3067\u5b9a\u7fa9\u3055\u308c\u3066\u3044\u308b\u5834\u5408\u306f\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u5909\u6570\u3068\u5b9a\u7fa9\u3055\u308c\u3066\u3044\u308b\u5834\u6240\u3067\u533a\u5225\u3057\u307e\u3059\u3002<\/p>\n<p>\u30af\u30e9\u30b9\u3092\u7d99\u627f\u3057\u305f\u30af\u30e9\u30b9\u304b\u3089\u306f\u53c2\u7167\u3067\u304d\u306a\u3044\u306e\u304c\u30af\u30e9\u30b9\u5909\u6570\u3068\u306e\u9055\u3044\u3067\u3059\u3002<\/p>\n<pre class=\"lang:ruby decode:true \">class MyClass\r\n  @class_instance_var = \"ruby\"\r\n  def self.class_instance_var\r\n    puts @class_instance_var\r\n  end\r\n\r\n  def class_instance_var\r\n    puts @class_instance_var\r\n  end\r\nend\r\n\r\ninstance = MyClass.new\r\ninstance.class_instance_var<\/pre>\n<p><strong>[\u5b9f\u884c\u7d50\u679c]<\/strong><\/p>\n<pre class=\"striped:false marking:false ranges:false nums:false nums-toggle:false lang:default decode:true \"><\/pre>\n<p>\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u30e1\u30bd\u30c3\u30c9\u5185\u3067\u306f\u3001\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u5909\u6570\u3068\u3057\u3066\u8a8d\u8b58\u3055\u308c\u308b\u306e\u3067\u3001\u30af\u30e9\u30b9\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u5909\u6570\u306b\u306f\u30a2\u30af\u30bb\u30b9\u3067\u304d\u307e\u305b\u3093\u3002<\/p>\n<pre class=\"lang:ruby decode:true \">class MyClass\r\n  @class_instance_var = \"ruby\"\r\n  def self.class_instance_var\r\n    puts @class_instance_var\r\n  end\r\n  def class_instance_var\r\n    puts @class_instance_var\r\n  end\r\nend\r\n\r\nMyClass.class_instance_var<\/pre>\n<p>[\u5b9f\u884c\u7d50\u679c]<\/p>\n<pre class=\"striped:false marking:false ranges:false nums:false nums-toggle:false lang:default decode:true \">ruby<\/pre>\n<p>\u30af\u30e9\u30b9\u30e1\u30bd\u30c3\u30c9\u306e\u5834\u5408\u306f\u30af\u30e9\u30b9\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u5909\u6570\u306b\u30a2\u30af\u30bb\u30b9\u3067\u304d\u307e\u3059\u3002<\/p>\n<pre class=\"lang:ruby decode:true \">class SubClass &lt; MyClass\r\n  def self.class_instance_var_again\r\n    puts @class_instance_var\r\n  end\r\nend\r\n\r\nSubClass.class_instance_var_again<\/pre>\n<p>[\u5b9f\u884c\u7d50\u679c]<\/p>\n<pre class=\"striped:false marking:false ranges:false nums:false nums-toggle:false lang:default decode:true \"><\/pre>\n<p>\u7d99\u627f\u3057\u305f\u30af\u30e9\u30b9\u304b\u3089\u306f\u30af\u30e9\u30b9\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u5909\u6570\u306b\u30a2\u30af\u30bb\u30b9\u3067\u304d\u307e\u305b\u3093\u3002<\/p>\n<h2>\u307e\u3068\u3081<\/h2>\n<p>\u3044\u304b\u304c\u3067\u3057\u305f\u304b\uff1f\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001\u5909\u6570\u306e\u6271\u3044\u65b9\u306b\u3064\u3044\u3066\u89e3\u8aac\u3057\u307e\u3057\u305f\u3002<\/p>\n<div class=\"box01\">\n<ul>\n<li><b>\u30ed\u30fc\u30ab\u30eb\u5909\u6570<\/b><\/li>\n<li><b>\u5b9a\u6570<\/b><\/li>\n<li><b>\u30b0\u30ed\u30fc\u30d0\u30eb\u5909\u6570<\/b><\/li>\n<li><b>\u30d6\u30ed\u30c3\u30af\u5909\u6570<\/b><\/li>\n<li><b>\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u5909\u6570<\/b><\/li>\n<li><b>\u30af\u30e9\u30b9\u5909\u6570<\/b><\/li>\n<li><b>\u30af\u30e9\u30b9\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u5909\u6570<\/b><\/li>\n<\/ul>\n<\/div>\n<p>\u3068\u5909\u6570\u306e\u7a2e\u985e\u306f\u591a\u3044\u306e\u3067\u3001\u305d\u308c\u305e\u308c\u306e\u5f79\u5272\u3084\u30b9\u30b3\u30fc\u30d7\u3092\u3057\u3063\u304b\u308a\u3068\u533a\u5225\u3067\u304d\u308b\u3088\u3046\u306b\u3057\u3066\u304a\u304d\u307e\u3057\u3087\u3046\u3002\u307e\u305f\u7279\u306b\u3001\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u5909\u6570\u3001\u30af\u30e9\u30b9\u5909\u6570\u3001\u30af\u30e9\u30b9\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u5909\u6570\u306e3\u3064\u306f\u6df7\u540c\u3057\u3084\u3059\u3044\u306e\u3067\u3082\u3046\u4e00\u5ea6\u5fa9\u7fd2\u3057\u3066\u304a\u3044\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<p>\u3082\u3057\u5909\u6570\u306e\u6271\u3044\u65b9\u306b\u3064\u3044\u3066\u5fd8\u308c\u3066\u3057\u307e\u3063\u305f\u3089\u3053\u306e\u8a18\u4e8b\u3092\u78ba\u8a8d\u3057\u3066\u304f\u3060\u3055\u3044\u306d\uff01<\/p>\n<h2>\u95a2\u9023\u8a18\u4e8b<\/h2>\n<p>            <a href=\"https:\/\/www.sejuku.net\/blog\/11406\" class=\"blog-card-anchor\">\n                <div class=\"blog-card\">\n                <div class=\"blog-card-content\">\n                    <div class=\"blog-card-thumbnail\">\n                    <img decoding=\"async\" class=\"blog-card-thumbnail-img\" src=\"https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2016\/10\/9d5521f0ef98dd0749e51b89a16f88b6-150x85.jpeg\">\n                    <\/div>\n                    <div class=\"blog-card-title-wrap\">\n                    <div class=\"blog-card-title\">\u3010ruby Array(\u914d\u5217)\u30116\u3064\u306e\u57fa\u672c\u3092\u3059\u3063\u304d\u308a\u89e3\u8aac\u3067\u6700\u77ed\u7406\u89e3<\/div>\n                    <div class=\"blog-card-update-date\">\u66f4\u65b0\u65e5\uff1a2024\u5e745\u67086\u65e5<\/div>\n                    <\/div>\n                <\/div>\n                <\/div>\n            <\/a>\n            <br \/>\n            <a href=\"https:\/\/www.sejuku.net\/blog\/11357\" class=\"blog-card-anchor\">\n                <div class=\"blog-card\">\n                <div class=\"blog-card-content\">\n                    <div class=\"blog-card-thumbnail\">\n                    <img decoding=\"async\" class=\"blog-card-thumbnail-img\" src=\"https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2017\/10\/image774-150x86.jpg\">\n                    <\/div>\n                    <div class=\"blog-card-title-wrap\">\n                    <div class=\"blog-card-title\">\u3010Ruby\u5165\u9580\u3011Hash(\u30cf\u30c3\u30b7\u30e5)\u306e\u57fa\u790e\u6587\u6cd5\u3010\u30b3\u30ed\u30f3=\u30b7\u30f3\u30dc\u30eb\u3011<\/div>\n                    <div class=\"blog-card-update-date\">\u66f4\u65b0\u65e5\uff1a2024\u5e745\u670821\u65e5<\/div>\n                    <\/div>\n                <\/div>\n                <\/div>\n            <\/a>\n            <br \/>\n            <a href=\"https:\/\/www.sejuku.net\/blog\/11614\" class=\"blog-card-anchor\">\n                <div class=\"blog-card\">\n                <div class=\"blog-card-content\">\n                    <div class=\"blog-card-thumbnail\">\n                    <img decoding=\"async\" class=\"blog-card-thumbnail-img\" src=\"https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2016\/10\/eyecatch_template-20-150x86.jpg\">\n                    <\/div>\n                    <div class=\"blog-card-title-wrap\">\n                    <div class=\"blog-card-title\">\u7406\u89e3\u3057\u3065\u3089\u3044Ruby\u306e\u6b63\u898f\u8868\u73fe\u3068\u306f\uff1f\u301c\u57fa\u790e\u306e\u57fa\u790e\u3092\u77e5\u308d\u3046\u301c<\/div>\n                    <div class=\"blog-card-update-date\">\u66f4\u65b0\u65e5\uff1a2024\u5e745\u67086\u65e5<\/div>\n                    <\/div>\n                <\/div>\n                <\/div>\n            <\/a>\n            <br \/>\n            <a href=\"https:\/\/www.sejuku.net\/blog\/11692\" class=\"blog-card-anchor\">\n                <div class=\"blog-card\">\n                <div class=\"blog-card-content\">\n                    <div class=\"blog-card-thumbnail\">\n                    <img decoding=\"async\" class=\"blog-card-thumbnail-img\" src=\"https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2016\/11\/ruby-150x86.jpg\">\n                    <\/div>\n                    <div class=\"blog-card-title-wrap\">\n                    <div class=\"blog-card-title\">\u3010Ruby\u306e\u6b63\u898f\u8868\u73fe\uff01\u3011\u57fa\u790e\u306e\u57fa\u790e\u304b\u3089\u5fdc\u7528\u307e\u3067\u5fb9\u5e95\u89e3\u8aac\uff01<\/div>\n                    <div class=\"blog-card-update-date\">\u66f4\u65b0\u65e5\uff1a2024\u5e745\u67086\u65e5<\/div>\n                    <\/div>\n                <\/div>\n                <\/div>\n            <\/a>\n            <br \/>\n            <a href=\"https:\/\/www.sejuku.net\/blog\/11835\" class=\"blog-card-anchor\">\n                <div class=\"blog-card\">\n                <div class=\"blog-card-content\">\n                    <div class=\"blog-card-thumbnail\">\n                    <img decoding=\"async\" class=\"blog-card-thumbnail-img\" src=\"https:\/\/www.sejuku.net\/blog\/wp-content\/uploads\/2016\/11\/11835_20180307-150x86.jpg\">\n                    <\/div>\n                    <div class=\"blog-card-title-wrap\">\n                    <div class=\"blog-card-title\">\u3010Ruby\u5165\u9580\u3011if\u3084if else\u306e\u57fa\u672c\u304b\u3089AND\u3084OR\u3092\u4f7f\u3046\u5fdc\u7528\u307e\u3067\u5b8c\u5168\u89e3\u8aac!!<\/div>\n                    <div class=\"blog-card-update-date\">\u66f4\u65b0\u65e5\uff1a2024\u5e745\u67086\u65e5<\/div>\n                    <\/div>\n                <\/div>\n                <\/div>\n            <\/a>\n            <br 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