{"id":2703,"date":"2021-11-03T12:01:35","date_gmt":"2021-11-03T03:01:35","guid":{"rendered":"https:\/\/suzutukiblog.com\/?p=2703"},"modified":"2022-10-07T22:54:57","modified_gmt":"2022-10-07T13:54:57","slug":"ruby-5","status":"publish","type":"post","link":"https:\/\/suzutukiblog.com\/index.php\/2021\/11\/03\/ruby-5\/","title":{"rendered":"Ruby\u306e\u307e\u3068\u30815(\u30af\u30e9\u30b9\u304b\u3089\u7d99\u627f\u307e\u3067)"},"content":{"rendered":"<p><a href=\"https:\/\/suzutukiblog.com\/index.php\/2021\/04\/12\/ruby-4\/\">4\u304b\u3089\u7d9a\u304d\u307e\u3059<\/a><\/p>\n<h3>\u30af\u30e9\u30b9<\/h3>\n<p>\u30aa\u30ea\u30b8\u30ca\u30eb\u306e\u30af\u30e9\u30b9\u3092\u4f5c\u6210\u3059\u308b\u4f8b:\u7bb1\u3092\u5b9a\u7fa9\u3059\u308b\u30af\u30e9\u30b9<br \/>\nBox\u30af\u30e9\u30b9<br \/>\n\u30e1\u30bd\u30c3\u30c9 hello \u30fb\u30fb\u30fb\u3000hello\u3068\u51fa\u529b\u3059\u308b\u6a5f\u80fd<\/p>\n<pre>class Box\r\n  def hello\r\n    puts 'hello'\r\n  end\r\nend\r\n\r\nbox = Box.new\r\nbox.hello\r\n\r\nhello<\/pre>\n<pre>class Box\r\n  def initialize(name)\r\n    puts 'initialize'\r\n    @name = name \r\n  #\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u5909\u6570\u306f\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u5185\u3067\u3042\u308c\u3070\u3069\u3053\u3067\u3082\u4f7f\u3048\u308b\r\n  \uff03\u2191\u9006\u306b\u3053\u308c\u306f\u4ed6\u3067\u306f\u4f7f\u3048\u306a\u3044\r\n\u3000end\u3000\u3000\u3000\r\n\r\n  def hello\r\n    puts \"Hello! I am #{@name}.\"\r\n  end \r\nend\r\n\r\nbox = Box.new('Cardboard')\r\nbox.hello\r\n\r\nwood = Box.new('wood')\r\nwood.hello\r\n\r\n#.rb\u3067\u51fa\u529b\u3059\u308b\u3068\r\ninitialize\r\nHello! I am wood.<\/pre>\n<p>\u66f4\u306b\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u3092\u8ffd\u52a0\u3059\u308b\u3053\u3068\u3082\u3067\u304d\u308b<\/p>\n<pre>class Box\r\n\u00a0 def initialize(name)\r\n\u00a0 \u00a0 puts 'initialize'\r\n\u00a0 @name = name\r\nend\r\n  def hello\r\n    puts \"Hello! I am #{@name}.\"\r\n  end\r\nend\r\n\r\nbox = Box.new('Cardboard')\r\nbox.hello\r\nwood = Box.new('wood')\r\nwood.hello\r\n\r\n#.rb\u3067\u51fa\u529b\u3059\u308b\u3068\r\ninitialize\r\nHello! I am Cardboard.\r\ninitialize\r\nHello! I am wood.<\/pre>\n<h3>\u30a2\u30af\u30bb\u30b5\u30e1\u30bd\u30c3\u30c9:\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u5909\u6570\u306e\u5024\u3092\u8aad\u307f\u66f8\u304d\u3059\u308b\u30e1\u30bd\u30c3\u30c9\u306e\u3053\u3068<\/h3>\n<pre>class Box\r\n  def initialize(name)\r\n    @name = name\r\n  end\r\n  def hello\r\n    puts \"Hello! I am #{@name}.\"\r\n  end\r\n\r\n  def name\r\n    @name\r\n  end\r\nend\r\n\r\nbox = Box.new('Cardboard')\r\nputs box.name\r\n\r\n#.rb\u3067\u51fa\u529b\u3059\u308b\u3068\r\ninitialize\r\nhello! I am Cardboard.\r\nCardboard<\/pre>\n<p>\u30af\u30e9\u30b9\u306e\u5916\u304b\u3089name\u30e1\u30bd\u30c3\u30c9\u3067\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u5909\u6570\u3092\u547c\u3073\u51fa\u3057\u305f<\/p>\n<p>\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u5909\u6570\u306e@name\u306e\u5024\u3092\u30af\u30e9\u30b9\u306e\u5916\u304b\u3089\u66f8\u304d\u63db\u3048\u305f\u3044<\/p>\n<pre>class Box\r\n\u00a0 def initialize(name)\r\n\u00a0 \u00a0 @name = name\r\n\u00a0 end\r\n\u00a0 def hello\r\n\u00a0 \u00a0 puts \"Hello! I am #{@name}.\"\r\n\u00a0 end\r\n\r\n\u00a0 def name\r\n\u00a0 \u00a0@name\r\n\u00a0 end\r\nend\r\nbox = Box.new('Cardboard')\r\nputs box.name\r\n#.rb\u3067\u51fa\u529b\u3059\u308b\u3068\r\nCardboard\r\nbox.@name = 'suzutuki'\r\n\u2191Syntax error\u3000\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u5909\u6570\u306f\u5916\u304b\u3089\u66f8\u304d\u63db\u3048\u3089\u308c\u306a\u3044<\/pre>\n<p>\u3067\u306f\u3069\u3046\u3059\u308b\u304b\uff1f\u66f8\u304d\u8fbc\u307f\u7528\u306e\u30e1\u30bd\u30c3\u30c9\u3092\u4f5c\u308b<\/p>\n<pre>class Box\r\n  def initialize(name)\r\n    # puts 'initialize'\r\n  @name = name\r\n  end\r\n  def hello\r\n    puts \"Hello! I am #{@name}.\"\r\n  end\r\n\r\n#\u4ed6\u306e\u8a00\u8a9e\u3060\u3068\u30b2\u30c3\u30bf\u30fc\u30e1\u30bd\u30c3\u30c9\r\n  def name\r\n    @name\r\n  end\r\n#\u4ed6\u306e\u8a00\u8a9e\u3060\u3068\u30bb\u30c3\u30bf\u30fc\u30e1\u30bd\u30c3\u30c9\r\n  def name=(value) #\u2190\u3053\u3053\u304b\u3089\r\n    @name = value\r\n  end\r\nend\r\n\r\nbox = Box.new('Cardboard')\r\n# box.hello\r\nputs box.name\r\nbox.name = 'suzutuki'\r\nputs box.name\r\n\r\n#.rb\u3067\u51fa\u529b\u3059\u308b\u3068\r\nCardboard\r\nsuzutuki\r\n\r\nname=\u306e\u3088\u3046\u306b\uff1d\u3067\u7d42\u308f\u308b\u30e1\u30bd\u30c3\u30c9\u3092\u5b9a\u7fa9\u3059\u308b\u3068\r\n\u5909\u6570\u306b\u4ee3\u5165\u3059\u308b\u3088\u3046\u306a\u5f62\u3067\u30e1\u30bd\u30c3\u30c9\u304c\u547c\u3073\u51fa\u3055\u308c\u308b\u3002\r\nbox.name = 'suzutuki'\u3068\u3044\u3046\u66f8\u304d\u65b9\u304c\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308b\r\n\u30e1\u30bd\u30c3\u30c9\u3092\u547c\u3073\u51fa\u3057\u3066\u3044\u308b\u3051\u308c\u3069\u3082\r\n\u5024('suzutuki')\u3092\u4ee3\u5165\u3059\u308b\u3088\u3046\u306a\u66f8\u304d\u65b9\u304c\u3067\u304d\u308b\u3002<\/pre>\n<p>\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u5909\u6570\u3092\u8aad\u307f\u66f8\u304d\u3059\u308b\u30e1\u30bd\u30c3\u30c9\u306e\u3053\u3068\u3092<br \/>\n\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u30e1\u30bd\u30c3\u30c9\u3068\u547c\u3076<br \/>\n\u8a2d\u5b9a\u3092\u66f8\u304d\u63db\u3048\u305f\u3044\u3068\u304d<\/p>\n<p>\u30a2\u30af\u30bb\u30b5\u30e1\u30bd\u30c3\u30c9attr_accessor\u30e1\u30bd\u30c3\u30c9<br \/>\nattr\u306fattribute\u3067\u5c5e\u6027\u306e\u3053\u3068<br \/>\n\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u30e1\u30bd\u30c3\u30c9\u3092\u958b\u767a\u8005\u304c\u66f8\u304b\u306a\u304f\u3066\u826f\u304f\u306a\u308b<\/p>\n<pre>class Box\r\n\r\nattr_accessor :name\r\n  def initialize(name)\r\n    puts 'initialize'\r\n    @name = name\r\n  end\r\n  def hello\r\n    puts \"Hello! I am #{@name}.\"\r\n  end\r\n\r\n# def name\r\n#   @name\r\n# end\r\n\r\n# def name=(a)\r\n#   @name = a\r\n# end\r\nend\r\n\r\nbox = Box.new('Cardboard')\r\n\r\nputs box.name\r\n\r\nbox.name = 'suzutuki'\r\nputs box.name\r\n\r\n\u2193ruby accessor.rb\u3067\u51fa\u529b\r\nCardboard\r\nsuzutuki\r\n\r\nclass Box\r\n  attr_accessor :name\r\nend\r\n\r\nbox = Box.new\r\nputs box.name\r\nbox.name = 'suzutuki'\r\nputs box.name\r\n\r\n#.rb\u3067\u51fa\u529b\u3059\u308b\u3068\r\n\r\nsuzutuki\r\n\u203b\u7a7a\u6b04\u306fnil\u3067\u521d\u671f\u5f15\u6570\u3092\u6307\u5b9a\u3057\u306a\u3044\u3068\u306a\u308b<\/pre>\n<p>\u30b3\u30e1\u30f3\u30c8\u30a2\u30a6\u30c8\u3057\u3066\u3044\u308b\u3068\u3053\u308d\u30921\u884c\u3067\u66f8\u304f\u3053\u3068\u304c\u3067\u304d\u308b<br \/>\n\u5b9a\u578b\u6587\u7684\u306a\u30e1\u30bd\u30c3\u30c9\u3092\u6bce\u56de\u66f8\u304b\u306a\u304f\u3066\u826f\u3044\u306e\u3067\u958b\u767a\u3092\u52b9\u7387\u5316\u3067\u304d\u308b<\/p>\n<h3>\u8aad\u307f\u8fbc\u307f\u306e\u307f\u3057\u305f\u3044\u3068\u304d<\/h3>\n<pre>class Box\r\n\r\nattr_reader :name\r\n  def initialize(name)\r\n    @name = name\r\n  end\r\n  def hello\r\n    puts \"Hello! I am #{@name}.\"\r\n  end\r\n\r\n# def name\r\n#   @name\r\n# end\r\n\r\n# def name=(a)\r\n#   @name = a\r\n# end\r\nend\r\n\r\nbox = Box.new('Cardboard')\r\n# box.hello\r\nputs box.name\r\n# box.name = 'suzutuki'\u66f8\u304d\u8fbc\u307f\u3092\u3057\u3088\u3046\u3068\u3059\u308b\u3068\u30a8\u30e9\u30fc\u306b\u306a\u308b\r\nputs box.name\r\n\r\n\u2193ruby accessor.rb\r\nCardboard\r\nCardboard\r\n\r\n\u2191\u66f8\u304d\u8fbc\u307f\u304c\u3055\u308c\u3066\u306a\u3044\u306e\u30672\u56deCardboard\u304c\u51fa\u529b\u3055\u308c\u305f\r\n\u306a\u304a\u66f8\u304d\u8fbc\u3082\u3046\u3068\u3059\u308b\u3068\u30a8\u30e9\u30fc\u304c\u51fa\u308b\u2193\r\naccessor.rb:26:in `&lt;main&gt;': undefined method `name=' for #&lt;Box:0x00000000021c7df0 @name=\"Cardboard\"&gt; (NoMethodError)\r\nDid you mean? name<\/pre>\n<h3>\u66f8\u304d\u8fbc\u307f\u306e\u307f\u3057\u305f\u3044\u3068\u304d<\/h3>\n<pre>class Box\r\n\r\nattr_writer :name\r\n  def initialize(name)\r\n    @name = name\r\n  end\r\n  def hello\r\n    puts \"Hello! I am #{@name}.\"\r\n  end\r\n\r\n# def name\r\n#   @name\r\n# end\r\n\r\n# def name=(a)\r\n#   @name = a\r\n# end\r\nend\r\n\r\nbox = Box.new('Cardboard')\r\n# box.hello\r\n# puts box.name\r\nbox.name = 'suzutuki'\r\n# puts box.name\r\n\r\n#.rb\u3067\u51fa\u529b\u3059\u308b\u3068\r\n\u4f55\u3082\u8d77\u304d\u3066\u306a\u3044\u3088\u3046\u306b\u898b\u3048\u308b\u304c\u66f8\u304d\u8fbc\u307f\u306f\u3055\u308c\u3066\u3044\u308b\u3002\u8868\u793a\u306f\u3055\u308c\u306a\u3044<\/pre>\n<h3>\u30af\u30e9\u30b9\u5909\u6570\uff1a\u30af\u30e9\u30b9\u81ea\u4f53\u306b\u5024\u3092\u4fdd\u6301\u3067\u304d\u308b\u5909\u6570<\/h3>\n<pre>class Box\r\n\r\n@@count = 0\r\n  def initialize(name)\r\n    @name = name\r\n    @@count += 1\r\n  end\r\n\r\n  def hello\r\n    puts \"Hello! I am #{@name}. #{@@count} instance(s).\"\r\n  end\r\nend\r\n\r\nkit = Box.new('Cardboard')\r\nkit.hello\r\n\r\nwood = Box.new('wood')\r\nwood.hello\r\n\r\nsuzutuki = Box.new('suzutuki')\r\nsuzutuki.hello\r\n\r\n#.rb\u3067\u51fa\u529b\u3059\u308b\u3068\r\nHello! I am Cardboard. 1 instance(s).\r\nHello! I am wood. 2 instance(s).\r\nHello! I am suzutuki. 3 instance(s).<\/pre>\n<p>\u30af\u30e9\u30b9\u30e1\u30bd\u30c3\u30c9info\u3092\u5b9a\u7fa9\u3001\u30af\u30e9\u30b9\u30e1\u30bd\u30c3\u30c9info\u3092\u5b9f\u884c\u3059\u308b\u3068<br \/>\n\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u306e\u751f\u6210\u56de\u6570(@@count)\u3092\u51fa\u529b\u3059\u308b<\/p>\n<pre>class Box\r\n\r\n@@count = 0\r\n  def initialize(name)\r\n    @name = name\r\n    @@count += 1\r\n  end\r\n\r\n  def hello\r\n    puts \"Hello! I am #{@name}. #{@@count} instance(s).\"\r\n  end\r\n\r\n  def self.info\r\n    puts \"#{@@count} instance(s).\"\r\n  end\r\nend\r\n\r\nBox.info\r\n#.rb\u3067\u51fa\u529b\u3059\u308b\u3068\r\n0 instance(s).\r\n\r\n\u2191\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u306e\u751f\u6210\u304c\u884c\u308f\u308c\u3066\u3044\u306a\u3044\u306e\u30670<\/pre>\n<pre>class Box\r\n  \r\n@@count = 0\r\n  def initialize(name)\r\n    @name = name\r\n    @@count += 1\r\n  end\r\n  \r\n  def hello\r\n    puts \"Hello! I am #{@name}. #{@@count} instance(s).\"\r\n  end\r\n\r\n  def self.info\r\n    puts \"#{@@count} instance(s).\"\r\n  end\r\nend\r\n\r\nkit = Box.new('Cardboard')\r\nBox.info\r\n\r\nwood = Box.new('wood')\r\nBox.info\r\n\r\nsuzutuki = Box.new('suzutuki')\r\nBox.info\r\n\r\n#.rb\u3067\u51fa\u529b\u3059\u308b\u3068\r\n1 instance(s)\r\n2 instance(s)\r\n3 instance(s)<\/pre>\n<p>\u4e00\u3064\u306e\u30af\u30e9\u30b9\u5909\u6570@@count\u3092\u305d\u308c\u305e\u308c\u306e\u30a4\u30f3\u30b9\u30bf\u30f3\u30b9\u304c\u5171\u901a\u3057\u3066<br \/>\n\u5229\u7528\u3057\u3066\u3044\u308b\u3053\u3068\u304c\u308f\u304b\u308b<\/p>\n<pre>class FF\r\n  def self.first_method\r\n    puts '1'\r\n  end\r\n\r\n  class &lt;&lt; self\r\n    def second_method\r\n     puts '2'\r\n    end\r\n    \r\n    def third_method\r\n      puts '3'\r\n    end\r\n   end\r\nend\r\n\r\nFF.first_method\r\nFF.second_method\r\nFF.third_method\r\n\r\n#.rb\u3067\u51fa\u529b\u3059\u308b\u3068\r\n'1'\r\n'2'\r\n'3'\r\n\r\nFF.new.var\u3060\u3068\u30a8\u30e9\u30fc\r\n\u30aa\u30d6\u30b8\u30a7\u30af\u30c8\u304b\u3089\u30af\u30e9\u30b9\u30e1\u30bd\u30c3\u30c9\u3092\u547c\u3073\u51fa\u305d\u3046\u3068\u3057\u3066\u3082\u30a8\u30e9\u30fc\u306b\u306a\u308b\r\n<\/pre>\n<p>&nbsp;<\/p>\n<h3>\u30af\u30e9\u30b9\u3068\u5b9a\u6570<\/h3>\n<pre>class Box\r\nREGION = 'USA'\r\n@@count = 0\r\n  def initialize(name)\r\n    @name = name\r\n    @@count += 1\r\n  end\r\n\r\n  def hello\r\n    puts \"Hello! I am #{@name}. #{@@count} instance(s).\"\r\n  end\r\n  \r\n  def self.info\r\n    puts \"#{@@count} instance(s). Region: #{REGION}\"\r\n  end\r\nend\r\n\r\nkit = Box.new('Cardboard')\r\nBox.info\r\n\r\nwood = Box.new('wood')\r\nBox.info\r\n\r\nsuzutuki = Box.new('suzutuki')\r\nBox.info\r\n\r\nputs Box::REGION\r\n\u30af\u30e9\u30b9\u306e\u5916\u304b\u3089\u547c\u3073\u51fa\u305b\u308b\r\n\r\n#.rb\u3067\u51fa\u529b\u3059\u308b\u3068\r\n1 instance(s). Region: USA\r\n2 instance(s). Region: USA\r\n3 instance(s). Region: USA\r\n\u2193puts\u304c\u3042\u308b\u306e\u30674\u756a\u76ee\u306eUSA\u3082\u51fa\u529b\u3055\u308c\u3066\u3044\u308b\u3002\u306a\u3044\u30683\u884c\u307e\u3067\r\nUSA<\/pre>\n<h3>\u30af\u30e9\u30b9\u306e\u7d99\u627f<\/h3>\n<p>\u89aa\u30af\u30e9\u30b9\u3092\u4f5c\u6210\u3059\u308b\u3053\u3068\u3067\u89aa\u30af\u30e9\u30b9\u306e\u6a5f\u80fd\u3092\u5f15\u304d\u7d99\u3044\u3067\u3001<br \/>\n\u5b50\u30af\u30e9\u30b9\u3092\u4f5c\u6210\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3002<br \/>\n\u30b3\u30fc\u30c9\u306e\u518d\u5229\u7528\u6027\u3084\u62e1\u5f35\u6027\u3092\u9ad8\u3081\u308b\u4ed5\u7d44\u307f<\/p>\n<pre>\uff03\u89aa\u30af\u30e9\u30b9\u306eUser\u3092\u4f5c\u308b\r\nclass User\r\n  def initialize(name)\r\n    @name = name\r\n  end\r\n  \r\n  def hello\r\n    puts \"Hello! I am #{@name}\"\r\n  end\r\nend\r\n\r\nakina = User.new('akina')\r\nakina.hello\r\n#.rb\u3067\u51fa\u529b\u3059\u308b\u3068\r\nHello! I am akina<\/pre>\n<pre>class AdminUser &lt; User\r\n#\u5b50\u30af\u30e9\u30b9\u307e\u305f\u306f\u30b5\u30d6\u30af\u30e9\u30b9\u3092\u4f5c\u3063\u305f\r\n  def hello_admin\r\n    puts \"Hello! I am #{@name} from AdminUser.\"\r\n  end\r\nend\r\nsuzutuki = AdminUser.new('suzutuki')\r\nsuzutuki.hello\r\nsuzutuki.hello_admin\r\n\r\n#.rb\u3067\u51fa\u529b\u3059\u308b\u3068\r\nHello! I am akina\r\nHello! I am suzutuki\r\nHello! I am suzutuki from AdminUser.\r\n<\/pre>\n<p>&nbsp;<\/p>\n<pre>class User\r\n  def initialize(name)\r\n    @name = name\r\n  end\r\n\r\n  def hello\r\n    puts \"Hello! I am #{@name}\"\r\n  end\r\nend\r\n\r\n<strong>#\u5b50\u30af\u30e9\u30b9\u307e\u305f\u306f\u30b5\u30d6\u30af\u30e9\u30b9\u3092\u4f5c\u3063\u305f<\/strong>\r\nclass AdminUser &lt; User\r\n  def hello_admin\r\n    puts \"Hello! I am #{@name} from AdminUser.\"\r\n  end\r\n#\u2193hello\u30e1\u30bd\u30c3\u30c9\u3092AdminUser\u306e\u65b9\u3067\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\u3059\u308b\r\n  def hello\r\n    puts 'Admin!!'\r\n  end\r\nend\r\n\r\nsuzutuki = AdminUser.new('suzutuki')\r\nsuzutuki.hello\r\nsuzutuki.hello_admin\r\n\r\n#.rb\u3067\u51fa\u529b\u3059\u308b\u3068\r\nAdmin!!\r\nHello! I am suzutuki from AdminUser.<\/pre>\n<p>\u89aa\u30af\u30e9\u30b9\u304b\u3089\u5c0f\u30af\u30e9\u30b9\u306e\u30e1\u30bd\u30c3\u30c9\u306f\u547c\u3073\u51fa\u305b\u306a\u3044\u306e\u306b\u6ce8\u610f\uff01<\/p>\n<p>\u5b50\u30af\u30e9\u30b9\u3092\u7de8\u96c6\u3059\u308b\u3053\u3068\u306b\u3088\u308a\u89aa\u30af\u30e9\u30b9\u306b\u5909\u66f4\u3092\u52a0\u3048\u308b\u3053\u3068\u306a\u304f<br \/>\n\u5b50\u30af\u30e9\u30b9\u306b\u6a5f\u80fd\u3092\u8ffd\u52a0\u3057\u305f\u308a\u4e0a\u66f8\u304d(\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9)\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u308b\uff01<\/p>\n<pre>class User\r\n def initialize(name)\r\n   @name = name\r\n end\r\n def hello\r\n   puts \"Hello! I am #{@name}\"\r\n end\r\nend\r\n\r\nclass AdminUser &lt; User\r\n def hello_admin\r\n   puts \"Hello! I am #{@name} from AdminUser.\"\r\n end\r\n #\u2193hello\u30e1\u30bd\u30c3\u30c9\u3092AdminUser\u306e\u65b9\u3067\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\u3059\u308b\r\n def hello\r\n   super\r\n   puts 'Admin!!'\r\n end\r\nend\r\n\r\nsuzutuki = AdminUser.new('suzutuki')\r\nsuzutuki.hello\r\nakane = AdminUser.new('akane')\r\nakane.hello\r\n\r\n#.rb\u3067\u51fa\u529b\u3059\u308b\u3068\r\n\r\nHello! I am suzutuki\r\nAdmin!!\r\nHello! I am akane\r\nAdmin!!\r\n\r\n\u89aa\u30af\u30e9\u30b9\u306eUser\u30af\u30e9\u30b9\u306ehello\u3082\u547c\u3073\u51fa\u3055\u308c\u3066\u3044\u308b\uff01<\/pre>\n<p>Integer\u306e\u7d99\u627f\u95a2\u4fc2\u304b\u3089\u7d99\u627f\u95a2\u4fc2\u3092\u898b\u308b\u3053\u3068\u304c\u3067\u304d\u308b<\/p>\n<pre>BasicObject\r\n\u2191\r\nObject\r\n\u2191\r\nNumeric\r\n\u2191\r\nInteger<\/pre>\n<pre>\uff03superclass\u3067\u89aa\u30af\u30e9\u30b9\u3092\u77e5\u308b\u3053\u3068\u304c\u3067\u304d\u308b\r\nInteger.superclass\r\n=&gt; Numeric\r\n2.5.1 :002 &gt; Numeric.superclass\r\n=&gt; Object\r\n2.5.1 :003 &gt; Object.superclass\r\n=&gt; BasicObject\r\n2.5.1 :004 &gt; BasicObject.superclass\r\n=&gt; nil<\/pre>\n<p><a href=\"https:\/\/suzutukiblog.com\/index.php\/2021\/04\/12\/ruby-6\/\">6\u306b\u7d9a\u304f<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>4\u304b\u3089\u7d9a\u304d\u307e\u3059 \u30af\u30e9\u30b9 \u30aa\u30ea\u30b8\u30ca\u30eb\u306e\u30af\u30e9\u30b9\u3092\u4f5c\u6210\u3059\u308b\u4f8b:\u7bb1\u3092\u5b9a\u7fa9\u3059\u308b\u30af\u30e9\u30b9 Box\u30af\u30e9\u30b9 \u30e1\u30bd\u30c3\u30c9 hello \u30fb\u30fb\u30fb\u3000hello\u3068\u51fa\u529b\u3059\u308b\u6a5f\u80fd class Box def hello puts &#8216;hello&#8217; end  [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":2684,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[27,31],"tags":[],"class_list":["post-2703","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-programming-note","category-ruby"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/suzutukiblog.com\/index.php\/wp-json\/wp\/v2\/posts\/2703","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/suzutukiblog.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/suzutukiblog.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/suzutukiblog.com\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/suzutukiblog.com\/index.php\/wp-json\/wp\/v2\/comments?post=2703"}],"version-history":[{"count":13,"href":"https:\/\/suzutukiblog.com\/index.php\/wp-json\/wp\/v2\/posts\/2703\/revisions"}],"predecessor-version":[{"id":2707,"href":"https:\/\/suzutukiblog.com\/index.php\/wp-json\/wp\/v2\/posts\/2703\/revisions\/2707"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/suzutukiblog.com\/index.php\/wp-json\/wp\/v2\/media\/2684"}],"wp:attachment":[{"href":"https:\/\/suzutukiblog.com\/index.php\/wp-json\/wp\/v2\/media?parent=2703"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/suzutukiblog.com\/index.php\/wp-json\/wp\/v2\/categories?post=2703"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/suzutukiblog.com\/index.php\/wp-json\/wp\/v2\/tags?post=2703"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}