寫一個用戶登錄認證函數，要求：

1.要求用戶輸入賬號密碼和txt中的用戶名數據庫對比；

2.要求用戶有三次嘗試機會；

3.要求用戶登陸後，執行其他功能無需再驗證；

txt數據：

{‘auth_name‘:‘user0‘, ‘auth_passwd‘:‘123‘}
{‘auth_name‘:‘user1‘, ‘auth_passwd‘:‘123‘}
{‘auth_name‘:‘user2‘, ‘auth_passwd‘:‘123‘}
{‘auth_name‘:‘user3‘, ‘auth_passwd‘:‘123‘}

 1 auth_state = {‘auth_name‘: None, ‘auth_log
 
‘: False}
 2 count = 3
 3 
 4 
 5 def auth(fun):
 6     def wap(*args, **kwargs):
 7         if auth_state[‘auth_name‘] and auth_state[‘auth_log‘]:
 8             res = fun(*args, **kwargs)
 9             return res
10         global count
11         while 1:
12             if count > 0:
13                 user = input(‘
 
enter your auth name:\n‘).strip()
14                 passwd = input(‘enter your auth passwd:\n‘).strip()
15                 with open(‘test‘, ‘r‘) as f:
16                     for line in f:
17                         line = eval(line)
18                         if line[‘auth_name‘] == user and line[‘
 
auth_passwd‘] == passwd:
19                             auth_state[‘auth_name‘] = user
20                             auth_state[‘auth_log‘] = True
21                             res = fun(*args, **kwargs)
22                             return res
23                     else:
24                         print(‘user_name or passwd is wrong‘)
25                         count -= 1
26                         continue
27             else:
28                 print(‘three times faile, try later.‘)
29                 break
30 
31     return wap
32 
33 
34 @auth
35 def log():
36     print(‘welcome back‘)
37 
38 
39 @auth
40 def home():
41     print(‘welcome to home‘)
42 
43 
44 log()
45 home()

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