求评论成绩，说实话，我没懂它啥意思？for Len

说实话没太懂，也没头绪……gg们看看？谢谢了，感觉这部分好难啊……

嗯,用for语句进行给定score的平均数计算,要求用到len()函数.
例如:

array=[70,60,55,75,95,90,80,80,85,100]
s=0
for i in array:
  s=i+s
average=s/len(array)

output:
79.0

l = [70,60,55,75,95,90,80,80,85,100]
sum=0
for i in range(len(l)):
    sum+=l[i]
print(sum/len(l))

如有用请采纳

A = [70,60,55,75,95,90,80,80,85,100]
sumA=0
for i in A:
    sumA+=i
ave=sumA/len(A)
print(ave)