[Python][ãŠå‹‰å¼·] Python入門(33) - 変数ãŒãƒãƒ¼ã‚«ãƒ«ã‚¹ã‚³ãƒ¼ãƒ—ã«å±žã™ã‚‹ã‹ã©ã†ã‹ã®å†…部的判æ–メモ代ã‚り。ã¦ãã¨ãƒ¼ã«ã€‚ ã„ã‚„ã€ã§ã™ã‹ã‚‰ã¦ãã¨ãƒ¼ã§ã™ã£ã¦ã€‚ 2å¹´å‰ãらã„ã«Pythonã‚ãŸã‚Šã§ãƒ¡ãƒ¼ãƒ«ãã‚ŒãŸæ–¹ã€ã”ã‚ã‚“ãªã•ã„。メール紛失ã—ã¦ã—ã¾ã„無視ã—ãŸå½¢ã«ãªã£ã¦ã—ã¾ã„ã¾ã—ãŸã€‚。。 ã“ã“ã¾ã§ã¯ãƒãƒ¼ã‚«ãƒ«ã‚¹ã‚³ãƒ¼ãƒ—ã«å±žã™ã‚‹ã‹ã©ã†ã‹ã¯ 「代入ã€ã—ãŸæ™‚点ã§æ±ºå®šã™ã‚‹ ã¨ã®ã“ã¨ã ã£ãŸãŒã€å®Ÿéš›ã¯é•ã†ã¨ã®ã“ã¨ã€‚ ã¾ãšä¾‹ã‚’見る。 >>> x = 100 >>> def aaa(): ... print x ... x = 99 ... >>> aaa() Traceback (most recent call last): File "", line 1, in ? File "", line 2, in aaa UnboundLocalError: local variable 'x' referenced before assignment >>> aaa関数ã®ä¸ã§2回グãƒãƒ¼ãƒãƒ«å¤‰æ•°ã¨åŒã˜åå‰ã®å¤‰æ•°ãŒä½¿ã‚
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