模拟成绩数据库

name_score={}
n=0
while n==0:
    a="0"
    r=input("You are a teacher or a student?if you are a student,please input '1',else,you can input 't'")
    if r=="1":
        ask=input("please input your name,and we'll find your score.")
        if ask in name_score:
            print("He's score is:",name_score[ask])
        else:
            print("is not a student.")
    else:
        while a=='0':        
            print("please input the student's name and he's score")
            name=input("input he's name.")
            score=input("input he's score.")
            name_score[name]=score
            on=input("Do you have another student?if you have,input'y',else,input'no'.")
            if on=='y':
                a='0'
            else:
                a=1
                print("OK")     

这是一个模拟管理成绩数据库，模拟教师添加成绩与学生查询成绩的行为。

这次主要利用了字典的键值对来帮助查询