2020-6-29-Python3-day1作业 

 1 # -*- coding:utf-8 -*-
 2 __author__ = 'admin'
 3 '''
 4 locked.txt:
 5 liuxiaoyu
 6 xiaodong
 7 tenglan
 8 match.txt:
 9 alex 123456
10 xiaoyu 6543210
11 wulongyuan 6667770
12 '''
13 import sys
14 
15 account_file = 'c:\python作业\day1\match.txt'
16 locked_file = 'c:\python作业\day1\locked.txt'
17 
18 def deny_account(user_name):
19     print('您的用户 %s 已被锁定！' % user_name)
20     with open(locked_file, 'a') as deny_f:
21         deny_f.write('\n' + user_name)
22 
23 def main():
24     retry_count = 0
25     retry_limit = 3
26     while retry_count < retry_limit:
27         user_name = input('\033[32;1m请输入用户名:\033[0m')
28         #判断用户名是否为空
29         if len(user_name) == 0:
30             print('用户名不能为空，请重新输入！')
31             continue
32         #判断用户名是否被锁定
33         with open(locked_file, 'r') as lock_f:
34             for line in lock_f:
35                 if len(line.strip()) == 0:
36                     continue
37                 if user_name == line.strip():   #strip()去掉两侧的空格和\n
38                     sys.exit('\033[32;1m用户 %s 已经被锁定！\033[0m' % user_name)
39         #判断密码是否为空
40         while True:
41             password = input('\033[32;1m请输入密码:\033[0m')
42             if len(password) == 0:
43                 print('密码不能为空，请重新输入！')
44                 continue
45             else:
46                 break
47         #判断用户名和密码是否相符
48         with open(account_file, 'r') as account_f:
49             flag = False
50             for line in account_f:
51                 #跳过空行
52                 if len(line.strip()) == 0:
53                     continue
54                 user, pawd = line.strip().split()
55                 if user_name == user and password == pawd:
56                     print('success!')
57                     flag = True
58                     break
59         #判断错误次数是否超过3次
60         if flag == False:
61             if retry_count < 2:
62                 print('您的用户名或密码有误，请重新输入！')
63             retry_count += 1
64             continue
65         else:
66             print('欢迎用户%s登陆老男孩系统！' % user_name)
67             break
68     else:
69         deny_account(user_name)
70 
71 if __name__ == '__main__':
72     main()

 

posted @ 2020-06-29 13:55  大连老铁山  阅读(208)  评论(0)    收藏  举报