第156行: $whereSql .= " And ( CONCAT(arc.title,arc.writer) like '%$keyword%') ";
改为: $whereSql = " left join dede_addonarticle on arc.id=dede_addonarticle.aid ".$whereSql." And ( CONCAT(dede_addonarticle.body,arc.title,arc.writer) like '%$keyword%') ";