python property装饰器

 1 #!/usr/bin/python  
 2 #encoding=utf-8
 3 
 4 """
 5 @property 可以将python定义的函数“当做”属性访问，从而提供更加友好访问方式
 6 """
 7 
 8 class  Parrot:
 9 #class Parrot(object):  #报错，AttributeError: can't set attribute'
10     def __init__(self):
11         self._voltage = 10000
12 
13     @property
14     def  voltage(self):
15         return self._voltage
16     
17 
18 if __name__ == "__main__":
19     p = Parrot()
20     print p.voltage  #就这样要调用函数，任性
21     p.voltage = 12   #给函数赋值，python中函数也是对象
22     print p.voltage