属性方法

import os
# os.system()
# os.mkdir()

class Dog(object):
‘‘‘这个类是描述狗这个对象的‘‘‘

def __init__(self,name):
self.name = name
self.__food = None

#@staticmethod #实际上跟类没什么关系了
#@classmethod
@property #attribute
def eat(self):
print("%s is eating %s" %(self.name,self.__food))
@eat.setter
def eat(self,food):
print("set to food:",food)
self.__food = food
@eat.deleter
def eat(self):
del self.__food
print("删完了")

def talk(self):
print("%s is talking"% self.name)

def __call__(self, *args, **kwargs):
print("running call",args,kwargs)

def __str__(self):
return "<obj:%s>" %self.name

#print(Dog.__dict__) #打印类里的所有属性，不包括实例属性
d = Dog("AAA")
print(d)
# print(d.__dict__) #打印所有实例属性，不包括类属性
# d(1,2,3,name=333)