【面向对象】属性方法

属性方法：把一个方法变成一个静态属性

class Dog(object):
    n='wangcai'
    def __init__(self,name):
        self.name=name

    @property
    def eat(self):
        print('%s is eating %s'%(self.n,'骨头'))

d=Dog('旺财')

d.eat
>>>wangcai is eating 骨头

class Dog(object):
    n='wangcai'
    def __init__(self,name):
        self.name=name
        self.__food=None


    @property    #变成属性
    def eat(self):
        print('%s is eating %s'%(self.name,self.__food))

    @eat.setter #修改
    def eat(self,food):
        print('set to food:',food)
        self.__food=food

    @eat.deleter #删除
    def eat(self):
        del self.__food
        print('delete')

d=Dog('旺财')
d.eat

d.eat='gutou'

d.eat

del d.eat