zuoye01.py

#!/usr/bin/env python
# -*- coding:utf-8 -*-
# author:The Machinist time:18-9-14

count = 0
_username = 'zhang'
_password = '123456'

f = open('blacklist.txt', 'r')
lock_name = f.read()
f.close()

F = open('word.txt', 'r')
lock_password = F.read()
F.close()


while count < 3:
    username = input("username:")
    password = input("password:")
    if _username == username and _password == password:
        print("欢迎登录")
        break
    elif lock_name == username and lock_password == password:
        print("对不起，你的用户名及密码已锁定")
    else:
        print("登录失败")
    count += 1

if count == 3:
    print("对不起，输入超过三次，用户名密码锁定")
    f = open('blacklist.txt', 'a')
    f.writelines(username)
    f.close()
    F = open('word.txt', 'a')
    F.writelines(password)
    F.close()