python 多用户登录

 1 #! /usr/bin/env python
 2 # -*- coding: utf-8 -*-
 3 #多用户登录
 4 
 5 user_list={
 6     ‘u01‘:{‘password‘:‘123‘},
 7     ‘u02‘:{‘password‘:‘123‘},
 8     ‘u03‘:{‘password‘:‘123‘},
 9 }
10 f = open(‘blacklist.txt‘,‘r‘)
11 lock_file = f.readlines()
12 f.close()
13 count=0
14 while True:
15     if count == 3:
16         print("用户名输入次数到达3次限制")
17         break
18     user_name=input("请输入您的用户名>>：")
19     if user_name not in user_list:
20         print("用户名错误")
21         count+=1
22     if user_name in lock_file:
23         print("用户名已锁定，请联系管理员！")
24         exit()
25     if user_name in user_list:
26         # count-=2
27         user_password=input("请输入您的密码>>: ")
28         if user_password == user_list[user_name][‘password‘]:
29             print("欢迎登录")
30             break
31         else:
32             print("密码错误")
33             count += 1
34         if count == 3 :
35             print("您输入的密码错误次数已达3次，将锁定您的用户！")
36             f = open(‘blacklist.txt‘,‘w‘)
37             f.write(‘%s‘%user_name)
38             f.close()
39             break