property属性

property函数的作用

讲方法转换为只读

重新设定一个属性设置和读取属性

In [1]: class Money(object):
   ...:     def __init__(self):
   ...:         self.__money = 0
   ...:     @property
   ...:     def money(self):
   ...:         return self.__money
   ...:     @money.setter
   ...:     def money(self,value):
   ...:         if isinstance(value,int):
   ...:             self.__money = value
   ...:         else:
   ...:             print 'error:not integer'
   ...:

In [2]: a = Money()

In [3]: a.money
Out[3]: 0

In [4]: a._Money__money
Out[4]: 0

In [5]: a.money = 100

In [6]: a.money
Out[6]: 100

In [7]: a._Money__money
Out[7]: 100