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Ruby勉強日誌3

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クラス

class.rb
   class ◯◯◯◯◯
     attr_accessor :□□□, :△△△
   end

インスタンス

instance.rb
   変数 = クラス名.new
   変数.属性 = ✖️✖︎
   puts 変数.属性

インスタンス変数:名前が@で始まる変数

initializeメソッド:インスタンス作成時の初期値を設定

initialize.rb
   class BillRecord 
   attr_accessor :name, :bill
   def initialize(name, bill)
     @name = name
     @bill = bill
    end
   end
   data = BillRecord.new("◯◯","✖︎✖︎")
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