这个求和是百度查的，之前学过列表求和吗

# coding:utf-8

a = [99, 96, 97.5, 89, 95.5, 93, 99, 95, 98, 99.5]

b = [91, 95.5, 97, 92, 99, 98, 94, 95.5, 96, 99]

c = [90.5, 92, 99, 99.5, 95, 90, 97, 96, 93, 91.5]

d = [98, 95, 95.5, 99, 92, 93.5, 93, 97.5, 96, 99.5]

e = [95, 91.5, 93, 96, 98.5, 99, 94, 96.5, 95.5, 92]

a.remove(89)

a.remove(99.5)

b.remove(91)

b.remove(99)

c.remove(90)

c.remove(99.5)

d.remove(92)

d.remove(99.5)

e.remove(91.5)

e.remove(99)

a1 = sum(a) 

b1 = sum(b)

c1 = sum(c)

d1 = sum(d)

e1 = sum(e)

a1 /= 8

b1 /= 8

c1 /= 8

d1 /= 8

e1 /= 8

num = [a1, b1, c1, d1, e1]

num.sort()

print(num)