深拷贝、浅拷贝

 1 In [88]: a = [11,22,33]
 2 
 3 In [89]: b = copy.copy(a)
 4 
 5 In [90]: id(a)
 6 Out[90]: 59275144
 7 
 8 In [91]: id(b)
 9 Out[91]: 59525600
10 
11 In [92]: a.append(44)
12 
13 In [93]: a
14 Out[93]: [11, 22, 33, 44]
15 
16 In [94]: b
17 Out[94]: [11, 22, 33]
18 
19 In [95]:
20 
21 In [95]:
22 
23 In [95]: a = (11,22,33)
24 
25 In [96]: b = copy.copy(a)
26 
27 In [97]: id(a)
28 Out[97]: 58890680
29 
30 In [98]: id(b)
31 Out[98]: 58890680