Python3学习笔记

2 通过简单赋值方式复制列表：

my_foods =['pizza','falafel','carrot cake']

friend_foods = my_foods

my_foods.append('cannoli')

friend_foods.append('ice cream')

print("My favorite foods are:") 

print(my_foods) 

print("\nMy friend's favorite foods are:") 

print(friend_foods)

输出：

My favorite foods are: 

['pizza','falafel','carrot cake','cannoli','ice cream'] 

Myfriend's favorite foods are:

['pizza', 'falafel', 'carrot cake', 'cannoli', 'ice cream']

可以看出两个列表是相同的，这并非我们想要的结果。