<ul>
    <li class="{pboot@if(0=='{sort:scode}')}active{/pboot@if}"><a href="{pboot:sitepath}/">首页</a></li>
    {pboot:nav}
    <li{pboot@if('[nav:scode]'=='{sort:tcode}')} class="active"{/pboot@if}><a href="[nav:link]" title="[nav:name]">[nav:name]</a>
    {pboot@if([nav:soncount]>0)}
      <ul class="">
        {pboot:2nav  parent=[nav:scode]}
        <li><a href= "[2nav:link]" title="[2nav:name]">[2nav:name]</a></li>
        {/pboot:2nav}
      </ul>
    {/pboot@if}
    </li>
    {/pboot:nav}
  </ul>