Pythoy的淺拷貝和深拷貝的區別

alist = [1,2,3,['a','b']]
'''
淺拷貝只是對象的引用，並沒有改變實際值。
'''
# b = alist
# print(b)
# alist.append(5)
# print(alist)
# print(b)

# import copy
# c = copy.copy(alist)
# print(alist)
# print(c)
# alist[3].append('cccc')
# print(alist)
# print(c)
'''
深拷貝直接拷貝值，原對象改變不影響備考貝值
'''
# import copy
# d = copy.deepcopy(alist)
# alist[3].append('5')
# print(alist)
# print(d)