如何取一个好名字,河南戏曲豫剧大全,母爱无价
例1:
1 #!/usr/bin/env python 2 import copy 3 d1 = {'x':1,'y':2,'z':[3,4.5]} 4 d2 = d1 5 d3 = d1.copy() 6 d4 = copy.copy(d1) 7 d5 = copy.deepcopy(d1) 8 d1['x'] = 'm' 9 d1['z'][0] = 9 10 print(d1) 11 print(d2) 12 print(d3) 13 print(d4) 14 print(d5)
输出结果:
例2:
1 #!/usr/bin/env python 2 import copy 3 l1 = [1,2,[3.4,5]] 4 l2 = l1[:] 5 l3 = l1 6 l4 = copy.copy(l1) 7 l5 = copy.deepcopy(l1) 8 l1[0] = 'a' 9 l1[2][0] = 3 10 print(l1) 11 print(l2) 12 print(l3) 13 print(l4) 14 print(l5)
输出结果:
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