编写题解 1216: 成绩转换

解题思路:

注意事项:

参考代码:

while True:
    try:
        n=int(input())
        if 0<=n<=59:
            print('E')
        if 60<=n<=69:
            print('D')
        if 70<=n<=79:
            print('C')
        if 80<=n<=89:
            print('B')
        if 90<=n<=100:
            print('A')
        if n<0 or n>100:
            print('Score is error!')
    except:
        break