diy3.py

student1 = {'语文':88,'数学':75,'英语':60}
student2 = {'语文':95,'数学':99,'英语':88}
student3 = {'语文':0,'数学':100,'英语':84}
score = {'悟空':student1,'诺依':student2,'小贝':student3}
while True:
    print('请输入要查询的名字，退出请输入q')
    name = input('查询姓名:')
    if name in score:
        a=score[name]
        print('*'*30)
        for k,v in a.items():
            print(k,v)
        print('*'*30)
    elif name=='q':
        print('系统已退出')
        break
    else:
        print('姓名不存在，请重新输入')
        print('*'*30)