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学习小记

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class mammal(object):

    def eat(self):

        print('eat meat....')

class Bird(object):

    def eat(self):

        print('eat vegetables....')

class FlyMixIn(object):

    def fly(self):

        print('flying....')

class RunMixIn(object):

    def run(self):

        print('running....')

class Dog(mammal,RunMixIn):

    pass

class Parrot(Bird,FlyMixIn):

    pass

class Bat(mammal,FlyMixIn):

    pass

class Ostrich(Bird,RunMixIn):

    pass

dog=Dog()

dog.run()

dog.eat()

parrot=Parrot()

parrot.fly()

parrot.eat()


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