(追è¨ï¼2013-08-16) æ¬è¨äºã®ããªãã¢ãå«ãï¼ï¼ã®ããªãã¢ã以ä¸ã®è¨äºã«ã¾ã¨ãã¾ããã ç¥ã£ã¦å¾ããï¼ï¼ï¼ã®Rubyã®ããªãã¢ãªè¨æ³ ã¡ãã£ã¨ããªãã¢ã ãã©ãç¥ã£ã¦ããã¨æå¤ã¨ä¾¿å©ãªRubyã®è¨æ³ã21åæ¾ã£ã¦ã¿ãã(Ruby1.9éå®)ã åãªãå ¨é¨ç¥ã£ã¦ããããããªããã©.. 1. åçç¶æ¿ Rubyã®ã¯ã©ã¹ç¶æ¿ã§ã¯ < è¨å·ã®å³è¾ºã«ã¯ã©ã¹å®æ°ã ãã§ãªãã¯ã©ã¹ãè¿ãå¼ãæ¸ãããã class Male def laugh; 'Ha ha ha!' end end class Female def laugh; 'Fu fu fu..' end end class Me < [Male, Female][rand 2] end Me.superclass # => Female Me.new.laugh # => 'Fu fu fu..' def io(env=:develop
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