摘要: from abc import ABCMeta,abstractmethod class Payment(metaclass=ABCMeta): # abstract class @abstractmethod def pay(self, money): pass class Alipay(Paym 阅读全文
posted @ 2020-08-06 12:37 耐烦不急 阅读(185) 评论(0) 推荐(0) 编辑