Python 学习 - 类继承的传递

# coding:utf-8
 
class Animal:
    """动物类"""

    def __init__(self):
        pass

    def eat(self):
        print 'eat'

    def drink(self):
        print 'drink'

    def run(self):
        print 'run'

    def sleep(self):
        print 'sleep'


class Dog(Animal):
    """狗类继承动物类"""

    def bark(self):
        print 'dog can bark'


class HaShiQi(Dog):
    """哈士奇继承狗类"""

    def tear_down_house(self):
        print '拆家'


# 创建狗对象
er_ha = HaShiQi()

# 调用爷爷类的方法
er_ha.eat()
er_ha.drink()
er_ha.run()
er_ha.sleep()

# 调用父类的方法
er_ha.bark()

er_ha.tear_down_house()