简单的登录接口（未优化）

#!/usr/bin/env python
#-*- coding:utf-8 -*-

count = 0
users = {'gdr':'123','djj':'123456'}
with open("name.txt",'r') as f:
    name = f.read()

while True:
    user = input("请输入你的用户名》》》")
    if user in name:
        print("你的账户已经被禁止登录")
        exit()
    pass_wd = input("请输入你的密码》》》")
    for key in users:
        if user == key and pass_wd == users[key]:
            print("登录成功")
            exit()
        else:
         count += 1
         if count > 4:
             with open("name.txt", "a") as f:
                 f.write('
')
                 f.write(user)
             print("你的账户已经锁定！！")
             exit()

 大概的流程图：