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By: a guest on May 2nd, 2012  |  syntax: None  |  size: 0.24 KB  |  hits: 10  |  expires: Never
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  1. class Foo
  2.         @@xxx = :xxx
  3.  
  4.         def foo
  5.                 p @@xxx
  6.         end
  7. end
  8.  
  9. class Bar < Foo
  10.         def bar
  11.                 p @@xxx # クラス間で共通になってしまっていて、グローバル変数と同じぐらい気をつける必要がある
  12.         end
  13. end
  14.  
  15. Foo.new.foo
  16. Bar.new.bar
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