Python Implements Login interface

Requirements:

1. Enter User name password

2. Display welcome information after successful authentication

3. After entering three times, lock the account

Flow chart:

Code implementation:

#!/usr/bin/env python
#！ -*-Coding:utf-8-*-
#!--Author:freem---
Import OS
def auths (Username,password):
For I in range (3): #循环3次, 3 login authentication
User=input ("Please insert username:")
Pswd=input ("Please insert password:")
if (User==username and Pswd==password): #判断输入用户名和密码是否跟系统用户名密码匹配
Os.system (' CLS ')
Print ("\ n") #登陆成功!
Print ("*******************************************")
Print ("*welcome to Index,you inserted is correct!*")
Print ("*******************************************")
Break #如果认证成功退出整个循环
Elif (User==username):
Print ("Please ensure your password!") #密码错误
Else
Print ("Please ensure your username!") #用户名错误
Else
Print ("You have been locked!") #账户被锁

If __name__== "__main__":
Username= "Freem"
Password= "123"
Auths (Username,password) #调用auths函数

Implementation results:

Input three failed, the account is locked:

Enter the wrong password once and enter the correct user name and password:

After entering the correct user name and password, the welcome message is displayed!

Python Implements Login interface