day1-登录

1、流程图

2、代码

 1 #!/usr/bin/env python
 2 #-*- coding:utf-8 -*-
 3 #Author: Tony Chiu
 4 #Blog:http://www.cnblogs.com/tonychiu
 5 #Github:https://github.com/qiujichun
 6 '''
 7 match.txt
 8     user1:pass1
 9     user2:pass2
10     user3:pass3
11     user4:pass4
12 locked.txt
13     u1
14     u2
15     u3
16 '''
17 import sys
18 retry_count = 0
19 
20 #指定账户、锁定信息路径
21 account_file = (r'match.txt')
22 locked_file = (r'locked.txt')
23 
24 # 输入用户名
25 username = input("Insert your name:")
26 
27 # 判断用户是否锁定
28 lockinfo = open(locked_file, "r")
29 for line in lockinfo.readlines():
30     if username == line.strip():
31         print("Your account %s is be locked"%username)
32         sys.exit()
33 lockinfo.close()
34 
35 #匹配用户名和密码
36 for i in range(3):
37     retry_count = retry_count+1
38     password = input("Insert password:")
39     userinfo = open(account_file, "r")
40     for line in userinfo.readlines():
41         User, Pass = line.strip().split(':')
42         if username == User and password == Pass:
43             print("Success!")
44             sys.exit()
45         else:
46             continue
47     userinfo.close()
48 
49     #尝试密码超过3次将锁定账户
50     if retry_count == 3:
51         print("Too many attempts,%s will be locked...."%username)
52         lockinfo = open(locked_file, "a")
53         lockinfo.write('
' + username)
54         lockinfo.close()
55         sys.exit()

View Code

3、测试

3.1输入已被锁定的用户

1 Insert your name:u1
2 Your account u1 is be locked
3 
4 Process finished with exit code 0

View Code

3.2输入正确信息

1 Insert your name:user1
2 Insert password:pass1
3 Success!
4 
5 Process finished with exit code 0

View Code

3.3输出错误密码3次

1 Insert your name:user1
2 Insert password:
3 Insert password:
4 Insert password:
5 Too many attempts,user1 will be locked....

View Code