查找 dedecmsROOT/include/taglib/arclist.lib.php 文件，大概在第212行代碼處。

1. if($CrossID=='') $orwheres[] = ' arc.typeid in ('.GetSonIds($typeid).')';
2. else $orwheres[] = ' arc.typeid in ('.GetSonIds($typeid).','.$CrossID.')';

替換為:

1. if($CrossID=='')
2. $orwheres[] = ' typeid in ('.GetSonIds($typeid).') or typeid2 in ('.GetSonIds($typeid).')';
3. else
4. $orwheres[] = ' typeid in ('.GetSonIds($typeid).','.$CrossID.') or typeid2 in ('.GetSonIds($typeid).','.$CrossID.')';
5. 示例:{dede:arclist typeid=’2,3,4′}….{/dede:arclist}