select * from destoon_sell_25 A left join destoon_member B on A.username=B.username where status=3 AND catid IN (438,44655,44663,44664,44665,44669)SELECT count(*) as cnt from destoon_sell_25 A left join destoon_member B on A.username=B.username where status=3 AND catid IN (438,44655,44663,44664,44665,44669) LIMIT 0,1 特种废旧塑料_再生料_资讯_今塑网