这道高中Python怎么做，第三题
给你一个思路，完整的代码自己写一下：
>>> scores = input().split(',')
7,8,9,10,8,9,9
>>> scores
['7', '8', '9', '10', '8', '9', '9']
>>> [int(i) for i in scores]
[7, 8, 9, 10, 8, 9, 9]
>>> round(sum([int(i) for i in scores])/len(scores),2)
8.57
>>>
给你一个思路，完整的代码自己写一下：
>>> scores = input().split(',')
7,8,9,10,8,9,9
>>> scores
['7', '8', '9', '10', '8', '9', '9']
>>> [int(i) for i in scores]
[7, 8, 9, 10, 8, 9, 9]
>>> round(sum([int(i) for i in scores])/len(scores),2)
8.57
>>>