copy&deepcopy
1 >>> import copy 2 >>> list1 = [1,2,3,['a','b']] 3 >>> list2 = copy.copy(list1)#浅复制，修改子对象将受影响 4 >>> list3= copy.deepcopy(list1)#深复制，修改子对象不受影响 5 >>> list2 6 [1, 2, 3, ['a', 'b']] 7 >>> list3 8 [1, 2, 3, ['a', 'b']] 9 >>> list1[3].append('c') 10 >>> list1 11 [1, 2, 3, ['a', 'b', 'c']] 12 >>> list2 13 [1, 2, 3, ['a', 'b', 'c']] 14 >>> list3 15 [1, 2, 3, ['a', 'b']]
