0130copy学习

#内存地址

Id()    

 

n1 = ['alex','apple','banana','paul','peiqi',['a','b']]

n2 = n1.copy()

print(n1)

print(n2)


#指向同一个地址
print(id(n1[0]))
print(id(n2[0]))



#调用copy模块，深度复制，完全换一个id地址
import copy

n4 = copy.deepcopy(n1)

n1[-1][0]='c'

print(n1)
print(n4)



#指向不同的地址

print(id(n1[-1][0]))
print(id(n4[-1][0]))




输出结果：

E:\Users\zhm\PycharmProjects\mywork\venv\Scripts\python.exe E:/Users/zhm/PycharmProjects/mywork/0130/copy_learning.py
['alex', 'apple', 'banana', 'paul', 'peiqi', ['a', 'b']]
['alex', 'apple', 'banana', 'paul', 'peiqi', ['a', 'b']]
4913664
4913664
['alex', 'apple', 'banana', 'paul', 'peiqi', ['c', 'b']]
['alex', 'apple', 'banana', 'paul', 'peiqi', ['a', 'b']]
4761088
4763136

Process finished with exit code 0