基本信息

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   源码介绍

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python浅拷贝、深拷贝

浅拷贝*********
import copy
print("测试浅拷贝")
a=[10,20,[60,70]]
b=copy.copy(a)
print(id(a),id(b))

for i in range(3):
    print(id(a[i]),end="\t")
print()
for i in range(3):
    print(id(b[i]),end="\t")
print()
print("*"*30)
b[2].append(100)
print(a)
print(b)
print("*"*60)
#深拷贝*********
print("测试深拷贝")
c=[10,20,[60,70]]
d=copy.deepcopy(c)
#print(c,d)
print(id(c),id(d))
for i in range(3):
    print(id(c[i]),end="\t")
print()
for i in range(3):
    print(id(d[i]),end="\t")
print()
print("*"*30)
d[2].append(80)
print(c)
print(d)
print("*"*60)