from abc import ABC, abstractmethod


# 策略
class Strategy(ABC):

    @abstractmethod
    def crawl(self):
        pass


# TODO 不同平台 不同策略
class XiaoniangaoHomePageStrategy(Strategy):
    def crawl(self):
        # 具体逻辑
        print("XiaoniangaoHomePageStrategy")
        return


class XiguaHomePageStrategy(Strategy):
    def crawl(self):
        # 具体逻辑
        print("XiguaHomePageStrategy")
        return


class ShipinhaoHomePageStrategy(Strategy):
    def crawl(self):
        # 具体逻辑
        print("ShipinhaoHomePageStrategy")

        return