#浅拷贝
import copy
laogong = ["a","b",[1000000,5000000]]
# laopo = laogong.copy()
# laopo[2][1] -= 1500000
# print(laopo)
# print(laogong)
#深拷贝
xiaoshan = copy.deepcopy(laogong)
xiaoshan[2][1] -= 1500
print(xiaoshan)
print(laogong)
原文：https://www.cnblogs.com/TKOPython/p/11637356.html