python接口的实现

from abc import ABCMeta, abstractmethod



class Payment(metaclass=ABCMeta):
    @abstractmethod
    def pay(self, money):
        pass


class Alipay(Payment):
    def pay(self, money):
        print('支付宝支付%s' %money)


class Wechatpay(Payment):
    def pay(self, money):
        print('微信支付%s' %money)


# Press the green button in the gutter to run the script.
if __name__ == '__main__':
    p = Wechatpay()
    p.pay(1000)