适配器模式

adapt.py

from adaptee import duck, bird

class Adapter:
    def __init__(self, obj, method):
        self.obj = obj
        self.__dict__.update(method)

    def __str__(self):
        # print(self.obj)
        return str(self.obj)

def main():
    object = []
    duck1 = duck('tanglaoya')
    object.append(Adapter(duck1, dict(execute=duck1.flyLow)))
    bird1 = bird('yingwu')
    object.append(Adapter(bird1, dict(execute=bird1.flyHigh)))
    for i in object:
        print('{} {}' . format(str(i), i.execute()))

if __name__=='__main__':
    main()

 

adaptee.py

class duck:
    def __init__(self, name):
        self.name = name

    def __str__(self):
        return 'this duck\'s name is {}' . format(self.name)

    def flyLow(self):
        return 'fly low'

class bird:
    def __init__(self, name):
        self.name = name

    def __str__(self):
        return 'this bird\'s name is {}'.format(self.name)

    def flyHigh(self):
        return 'fly high'