{pc:get sql="SELECT DISTINCT h.`views`,n.`title`,n.`url`,n.`thumb`,n.`inputtime`,n.`description` FROM `v9_hits` AS h,`v9_news` AS n WHERE h.`hitsid`=concat_ws('-','c-1',n.id,null) AND h.catid=25 ORDER BY n.`inputtime` DESC" num="6"}
之前用substring_index(h.`hitsid`, ‘-‘, -1)=n.`id` 发现会因为有其他模型有相同的截取id重复，从而出现调用重复的问题