pbootcms多个栏目循环调用栏目内容

{pboot:nav parent=7 num=3}
<div class="news-item">
    <div class="item-list news-list">
        {pboot:list scode=[nav:scode] num=3 order=sorting}
            <div class="pic pic-scale oh">
                <a href="[list:link]">
                    <img src="[list:ico]" alt="[list:title]">
                </a>
            </div>
        {/pboot:list}
    </div>
</div>
{/pboot:nav}