ãPythonä¸ç对象ä¹é´èµå¼æ¶æ¯æå¼ç¨ä¼ éçï¼å¦æéè¦æ·è´å¯¹è±¡ï¼éè¦ä½¿ç¨æ ååºä¸çcopy模åã
ãã1. copy.copy æµ
æ·è´ åªæ·è´ç¶å¯¹è±¡ï¼ä¸ä¼æ·è´å¯¹è±¡çå
é¨çå对象ã
ãã2. copy.deepcopy æ·±æ·è´ æ·è´å¯¹è±¡åå
¶å对象
ããä¸ä¸ªå¾å¥½çä¾åï¼
ããimport copy
ããa = [1, 2, 3, 4, ['a', 'b']] #åå§å¯¹è±¡
ããb = a #èµå¼ï¼ä¼ 对象çå¼ç¨
ããc = copy.copy(a) #对象æ·è´ï¼æµ
æ·è´
ããd = copy.deepcopy(a) #对象æ·è´ï¼æ·±æ·è´
ããa.append(5) #ä¿®æ¹å¯¹è±¡a
ããa[4].append('c') #ä¿®æ¹å¯¹è±¡aä¸ç['a', 'b']æ°ç»å¯¹è±¡
ããprint 'a = ', a
ããprint 'b = ', b
ããprint 'c = ', c
ããprint 'd = ', d
ããè¾åºç»æï¼
ããa = [1, 2, 3, 4, ['a', 'b', 'c'], 5]
ããb = [1, 2, 3, 4, ['a', 'b', 'c'], 5]
ããc = [1, 2, 3, 4, ['a', 'b', 'c']]
ããd = [1, 2, 3, 4, ['a', 'b']]
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