python初步编写用户登录
python编写用户登录
用python写一个脚本,使得这个脚本在执行后,可以产生如下的效果:1、用户的账号为:root 密码为:westos2、用户账号和密码均输入正确时,输出" login ok !"3、用户账号输入正确,密码输入错误,会提示密码错误。4、用户账号输入错误,会提示该用户不存在。5、用户账号和密码输入错误三次后自动退出并提示输入错误超过三次。该用户登录的脚本如下所示:
#!/usr/bin/env python
#coding:utf-8"""
file: userlogin.py
date: 2017-08-24
author:lijian
desc:"""User_Name = "root"
Password = "westos" print "Please input your username and password !" for i in range(1,5): if i < 4 : In_User_Name = raw_input("username : ") In_Password = raw_input("password : ") if User_Name == In_User_Name: if Password == In_Password: print "login ok" print "\n" exit(0) else: print "password is no ok !" print "\n" else: print "user is not exist ! " print "\n" else : print "count is bigger than 3 !"
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执行该脚本后的输出图如下所示: