class Mediator:
def __init__(self):
pass
class CarMediator(Mediator):
def setObj(self, Buyller, Seller):
self.buyller = Buyller
self.seller = Seller
def buy(self):
print('buyller buy car')
self.seller.giveMoney()
def sell(self):
print('seller seller car')
self.buyller.getMoney()
class Colleague:
def __init__(self, mediator):
self.mediator = mediator
class Buyller(Colleague):
def buy(self):
self.mediator.sell()
def getMoney(self):
print('获取钱')
class Seller(Colleague):
def sell(self):
self.mediator.buy()
def giveMoney(self):
print('give money')
if __name__ == '__main__':
mediator = CarMediator()
buyller = Buyller(mediator)
seller = Seller(mediator)
mediator.setObj(buyller, seller)
buyller.buy()
seller.sell()
