python中的深拷贝

最早接触深拷贝是在C++中,深拷贝需要自己实现。现在用了python,感觉好多了。示例代码如下:

import copy
import random

a = [i for i in range(100)]
a1 = copy.deepcopy(a)
a2 = a

random.shuffle(a1)

print("a == a1 -> ", a == a1)
print("a == a2 -> ", a == a2)

 

posted @ 2018-09-26 15:57  lichongbin  阅读(195)  评论(0编辑  收藏  举报