class Dog(object):

    n=333

    name='小虎子'

    def __init__(self,name):

        self.name=name

    @classmethod

    def eat(self,food):

        print('n=%s'%self.n)

        print('%s is eating %s'%(self.name,food))

    def talk(self):

        print('%s is fully'%self.name)

d1=Dog('白蹄')

d1.eat('肉')

d1.talk()

#类方法：只能访问类变量，不能访问静态变量

#http://www.cnblogs.com/alex3714/articles/5213184.html