python 类中方法的动态特性

方法添加

class  Fruit(object):

    pass

 

def add(self):

    print "grow"

 

if __name__ == "__main__"

    Fruit.grow = add

    fruit = Fruit()

    fruit.grow()

 

方法更新

class  Fruit(object):

    pass

 

def update(self):

    print "grow"

 

if __name__ == "__main__"

    Fruit.grow = update

    fruit = Fruit()

    fruit.grow()