有关Python的问题

num = int(input("请输入学生人数："))
score = {}
total = {}
for i in range(num):
    no = input("请输入学号：")
    s = input("请输入成绩（以空格分割成绩）：")
    s = [int(i) for i in s.split(' ')]
    score[no] = s
    total[no] = sum(s)
print(total)