用python玩转数据3.1

最新推荐文章于 2024-04-07 16:55:54 发布

原创最新推荐文章于 2024-04-07 16:55:54 发布 · 185 阅读

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#用python玩转数据 #python

本文介绍了一个使用Python实现的简易用户登录系统，包括新用户注册与老用户登录功能。系统通过字典存储用户信息，确保用户名唯一，并进行密码验证。

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用python玩转数据3.1

info1={'marry':'123456'}
def newusers():
    new_name = input('please enter a name:')
    if new_name in info1:
        new_name = input('the name has been occuipied,please enter again:')
    else:
        new_psw = input('please set the password:')
        new_psw2=input('please enter the password again:')
        if new_psw==new_psw2:
            info1[new_name]=new_psw
            print('welcome to the new world\n')
            login()
        else:
            print('you have entered two different passwords,please try again\n')
            login()

def oldusers():
    old_name = input('please enter the username:')
    old_psw = input('please enter the password:')
    if info1.get(old_name)==old_psw:
        print(old_name,'welcom back!\n')
        login()
    else:
        print('login incorrect,please try again\n')
        oldusers()
        
def login():
    print(' (N)ew User Login\n','(O)ld User Login\n','(E)xit\n')
    option = input('please enter the option:')
    if option =='N'or option=='n':
        newusers()
    elif option=='O' or option=='o':
        oldusers()
    elif option=='E' or option=='e':
        print('Thank you for your time')
        exit()
    else:
        print('wrong option,please try again\n')
        login()
if __name__=='__main__':
    login()