注册登录验证程序

import pickle
def register():
    close = input("退出请按Q\q:")
    if close.upper() == "Q":
        return
    else:
        dic = {}
        user_name = input('请输入注册的用户名：')
        user_password = input('请输入用户密码：')
        dic['user'] = user_name
        dic['pas'] = user_password
        print(dic)
        with open('userinfo', 'ab') as f1:
            pickle.dump(dic, f1)
register()
def logout():
    close = input('退出请按Q\q:')
    if close.upper() == 'Q':
        return
    else:
        user_name = input("请输入用户名：")
        user_password = input('请输入密码：')
        with open('userinfo', 'rb') as f2:
            while True:
                try:
                    dic = pickle.load(f2)
                    if user_name == dic['user'] and user_password == dic['pas']:
                        print('登录成功')
                        break
                except EOFError:
                    print('登录失败')
                    break
logout()