python开发函数进阶：装饰器

 1 #!/usr/bin/env python
 2 #_*_coding:utf-8_*_
 3 
 4 tag = False
 5 
 6 def login(func):
 7     def inner(*args,**kwargs):
 8         global tag
 9         if tag == False:
10             user = input(‘please your username>>>:‘)
11             pwd = input(‘please your password>>>:‘)
12             f = open(‘aaa‘,‘r‘,encoding=‘utf-8‘)
13             for i in f:
14                 user_pwd = eval(i)
15                 if user == user_pwd[‘name‘] and pwd == user_pwd[‘password‘]:
16                     tag = True
17             f.close()
18         if tag:
19             ret = func(*args,**kwargs)
20             return ret
21     return inner
22 
23 @login
24 def haha(*args,**kwargs):
25     print(‘中国动漫‘)
26     pass
27 
28 @login
29 def hengheng(*args,**kwargs):
30     print(‘美国动漫‘)
31     pass
32 ##########用户调用方式
33 haha()
34 hengheng()