pbootcms模板怎么在首页循环调用所有栏目和对应内容

{pboot:nav}
  <div class="panel-title">
    <a href="[nav:link]" class="more">更多</a>[nav:name]
  </div>
  <ul class="list-2">
   {pboot:list scode=[nav:scode] num=4 order=date}
        <li>
        <a href="[list:link]">
        <div class="m"><img src="[list:ico]" onerror="this.src='/static/images/nopic.png'"></div>
        <div class="text">
        <h4>[list:title]</h4>
        <span>[list:date style=Y-m-d]</span>
        <p>[list:description]</p>
        </div>
        </a>
    </li>
    {/pboot:list}
   </ul>
{/pboot:nav}