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承å‰ï¼šPythonã®ãƒ‡ã‚³ãƒ¬ãƒ¼ã‚¿(decorator)ã‚’ç†è§£ã™ã‚‹ 2 デコレータã«å¼•æ•°ã‚’æ¸¡ã™ ç´ æ™´ã‚‰ã—ã„ã€ã§ã¯ãƒ‡ã‚³ãƒ¬ãƒ¼ã‚¿è‡ªèº«ã«å¼•æ•°ã‚’渡ã™ã«ã¯ã©ã†ã—ãŸã‚‰ã‚ˆã„ã®ã ã‚ã†ã‹ï¼Ÿã€€ã•ã¦ã€ãƒ‡ã‚³ãƒ¬ãƒ¼ã‚¿ã¯å¼•æ•°ã¨ã—ã¦é–¢æ•°ã‚’å—ã‘入れる必è¦ãŒã‚ã‚‹ã®ã§ã¡ã‚‡ã£ã¨ã‚„ã£ã‹ã„ã 。デコレータã«ç›´æŽ¥ãƒ‡ã‚³ãƒ¬ãƒ¼ãƒˆã•ã‚ŒãŸé–¢æ•°-引数を渡ã™ã“ã¨ã¯ã§ããªã„ã‹ã‚‰ã 。 解決を急ãå‰ã«ã€ã¡ã‚‡ã£ã¨å¾©ç¿’ã‚’ã—よã†ã€‚ # デコレータã¯'普通'ã®é–¢æ•°ã§ã‚ã‚‹ def my_decorator(func): print "I am a ordinary function" def wrapper(): print "I am function returned by the decorator" func() return wrapper # ãã®ãŸã‚ã€ãªã«ã‚‚"@"ãªã©ä½¿ã‚ãšã«å‘¼ã³å‡ºã™ã“ã¨ãŒã§ãã‚‹ def lazy_function(): print "zzz
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What is meant by "Now you have two problems"?
How to build a decorator with optional parameters?
http://atnd.org/events/46553
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