
代码如下:
score=input('请输入分数')
if int(score)>=90:
print('A')
elif int(score)>=80:
print('B')
elif int(score)>=70:
print('C')
elif int(score)>=60:
print('D')
else:
print('E')

代码如下:
score=input('请输入分数')
if int(score)>=90:
print('A')
elif int(score)>=80:
print('B')
elif int(score)>=70:
print('C')
elif int(score)>=60:
print('D')
else:
print('E')