From: keiju@... (ÀÐÄÍ·½¼ù ) Date: 1996-10-01T15:52:25+09:00 Subject: [ruby-list:702] Re: ++[Re: dylan [Re: swap values(Re: call by reference)]] ã‘ã„ã˜ã‚…ï¼ SHLジャパンã§ã™. In [ruby-list :00698 ] the message: "[ruby-list:698] Re: ++[Re: dylan [Re: swap values(Re: call by reference)]] ", on Oct/01 15:29(JST) Shin-ichiro Hara writes: >> ã¨ã“ã‚ã§, += ã¨ã‹ã¯å®Ÿè£…ã•ã‚Œã¦ã„ã¾ã™ãŒ, ã“ã‚Œã¯ã©ã®ã‚ˆã†ã«è§£é‡ˆã•ã‚Œã¦ã„ã‚‹ >> ã®ã§ã—ょã†? > >å†å®šç¾©ä¸å¯ãªã‚“ã§ã™ã‚ˆã­ã€‚メッソッドã§ãªã„。 ãã†ã§ã‚‚ãªã„ã¿ãŸã„ã§ã™ã‚ˆ. +を定義ã™ã‚‹ã¨+=も定義ã•ã‚Œã¾ã™. class Foo def initialize(i) @i = i end def +(i) Foo.new(i + @i) end end f1 = Foo.new(1) f2 = f1+2 print f2.inspect #-> @i = 3 f2 += 3 print f2.inspect #-> @i = 6 __ ..........................................石塚 圭樹＠SHLジャパン(æ ª)... ------------->アドレス変ã‚ã‚Šã¾ã—ãŸ!! e-mail: keiju@shljapan.co.jp <----