select * from destoon_sell_25 A left join destoon_member B on A.username=B.username where status=3 AND catid IN (44414,44415,44416,44417,44418,44419,44420,44421,44422)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 (44414,44415,44416,44417,44418,44419,44420,44421,44422) LIMIT 0,1 二手塑料机械_塑料机械_资讯_今塑网