python学习笔记——列表

切片：python中处理列表的部分元素。python到达第二个索引前面的元素后停止。即要输出前面3个元素，需要指定索引0~3（[0:3]）

players=['charles','martina','michael','florence','eli']
print(players[0:3])
print(players[1:4])
print(players[:3])#从第一个到第三个元素
print(players[2:])#从第三个到最后一个
print(players[-3:])#从倒数第三个到最后一个

 

 

 

 

 

 

 

 

切片遍历

players=['charles','martina','michael','florence','eli']

print("Here are the first three players on my team:")
for player in players[:3]:
    print(player.title())

 

 

 

 

 

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 food are:")
print(my_foods)

print("\nMyfrend's favorite food arre:")
print(friend_foods)