深浅拷贝

#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)