织梦实现嵌套li加currentstyle的二级菜单

<ul>  
        <li><a href='{dede:global.cfg_cmsurl/}/'>  
            <span class="cn">首页</span>  
            <span class="en">Home</span>  
        </a></li>  
        {dede:channel type='top' row='10' currentstyle='<li class="current"><a href="~typelink~" ~rel~>#<span class="cn">~typename~</span><span class="en">~dirName~</span></a></li>'  
        }  
        <li>  
            <a href='[field:typeurl/]' [field:rel/]>  
                <span class="cn">[field:typename/]</span>  
                <span class="en">[field:typedir runphp='yes' commet="获得最后目录名，英文"]  
                    $l=split("/", @me);  
                    @me=array_pop($l);  
                [/field:typedir]</span>  
            </a>  
        </li>  
        {/dede:channel}  
    </ul>  

{dede:channelartlist typeid='top'}  
    <ul id="dropmenu{dede:field.typeid/}">  
    {dede:channel type='son' noself='yes'}  
        <li><a href="[field:typelink/]">[field:typename/]</a></li>  
    {/dede:channel}  
    </ul>  
{/dede:channelartlist}