crawl.py 文件源码

def execute(self, context, start_req, parser=_default_parser,
                pool=None, pool_size=None):
        """
        :param context: ?????
        :param start_req: ??????
        :param parser: Response?????
        :param concurrent: ??????????
        :param pool: ?????gevent pool
        """

        if pool or pool_size:
            # ????
            return self._concurrent_execute(
                context, start_req, parser,
                pool, pool_size)
        else:
            # ????
            return self._sync_execute(context, start_req, parser)