select cars.*,member.id from (
(select * from phpcars_cars where fidex=1 order by listorder limit 3 ) #固定广告位
union
(select * from phpcars_cars where top>1 order by top limit 5 ) #刷新广告位
union
(select * from phpcars_cars where top=1 order by p_addtime desc )) as cars LEFT JOIN phpcars_member AS member ON member.id = cars.uid #正常位置
