phpcms根据二级栏目列表写的三级栏目列表

 <div class="container">
     <!--左边树状导航-->
     <div class="CNLTreeMenu" id="CNLTreeMenu1">
         <ul>
         {loop subcat($catid) $c}
         <li class="Opened"><a href="{$c[url]}">{$c['catname']}</a>
      <ul>
         {if $c['child']}
         {php $child = subcat($c['catid']);}
         {loop $child $catc}
           <li class="Opened"><a title="{$catc['catname']}" href="{$c['url']}" target="_blank">{$catc['catname']}</a>
                  <ul>
                       {if $child[$catc['catid']]['child']}
                       {php $child2 = subcat($catc['catid']);}
                       {loop $child2 $catc2}
                           <li class="Child"><a href="{$cate['url']}">{$catc2['catname']}</a></li>
                       {/loop}
                       {/if}
                  </ul>
           </li>
         {/loop}
         </ul></li>{/if}{/loop}</ul>
 </div>