greeting = [‘hi’ , ‘bye’ , ‘yo’]
print (greeting[ :3])
三个都有
print (greeting[2: ])
只有yo
print (greeting[2: ]) print (greeting[2: ])man
=yoyoman?
对了吗？
头壳派去哦
欸害哦
越来越尊敬工程师；（

连个LF2都改不好跳上去为什么下不来啊防跳攻防跳防攻