day1-作业

编写登陆接口

• 输入用户名密码
• 认证成功后显示欢迎信息
• 输错三次后锁定

代码如下：

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

count = 0

name = "hx"passwd =   "123"

f = open (‘user_black‘,‘r‘ )lock_file = f.read()f.close()

name = input("请输入用户名:")

for i in range(1):   if lock_file ==  name:      print ("sorry,锁定了")      exit()   else:      continue

for i in range(3):   passwd = input("请输入密码:")   if passwd == "123":      print ("welcome")      break   else:      print ("登录失败!")      count += 1

if count == 3:                         print("用户已锁定")   f = open (‘user_black‘,‘w‘ )   f.write(‘%s‘%name)   f.close()