导航栏二级菜单

{pc:content action="category" catid="0" num="6" siteid="$siteid" order="listorder ASC"}
          <li {if !$catid} class="current-menu-item"{/if}><a href="{siteurl($siteid)}"><span>首&nbsp;&nbsp;&nbsp;&nbsp;页</span></a></li>
          {loop $data $r}
          <li {if is_parents($r[catid],$catid,$CATEGORYS)&&$r[type]!=2} class="current-menu-item"{/if}><a href="{$r[url]}">{$r[catname]}{if $r[catid]!=$CATEGORYS[$r[catid]][arrchildid]}<span class="menuPlus">+</span>{/if}</a>
          <!--二级下拉菜单-->
          {php $nowcatid=$r[catid];}
          {pc:content action="category" catid="$nowcatid" siteid="$siteid" order="listorder ASC" return="data1"}
            {if count($data1)>0}
              <ul class="sub-menu">
              {loop $data1 $v}
              <li><a href="{$v[url]}">{$v[catname]}{if $v[catid]!=$CATEGORYS[$v[catid]][arrchildid]}<span class="menuArrow">+</span>{/if}</a>
                  <!--三级下拉菜单-->
                {php $nowcatid=$v[catid];}
                  {pc:content action="category" catid="$nowcatid" siteid="$siteid" order="listorder ASC" return="data2"}
                {if count($data2)>0}
                  <ul class="sub-menu">
                 {loop $data2 $s}
                  <li><a href="{$s[url]}">{$s[catname]}</a>{if $s[catid]!=$CATEGORYS[$s[catid]][arrchildid]}<span class="menuArrow">+</span>{/if}</li>
                  {/loop}     
                  </ul>
                {/if}
                  {/pc}
                  <!--三级下拉菜单 END-->
              </li> 
              {/loop}     
              </ul>
            {/if}
          {/pc}
          <!--二级下拉菜单END-->
          </li>
          {/loop}
          {/pc}
          {php echo runhook('glogal_menu')}
          {if $top_parentid}
          {/if}