1.没有在内存中开辟新空间就是浅拷贝(id值相等)
print(id(a))#==>3147823141320
print(id(b))#==>3147823141320
import copy
c=copy.deepcopy(a)
print(id(a))#==>3147823141320
print(id(c))#==>3110823466376 (新空间)
1.没有在内存中开辟新空间就是浅拷贝(id值相等)
print(id(a))#==>3147823141320
print(id(b))#==>3147823141320
import copy
c=copy.deepcopy(a)
print(id(a))#==>3147823141320
print(id(c))#==>3110823466376 (新空间)