phpok5.5 三级导航菜单调用代码

<ul>
    <!-- php:$menu = menu('top') -->
    <!-- loop from=$menu key=$key value=$value id=$tmpid -->
    <li>
        <!-- if $value.sublist -->
        <span class="no-click">{$value.title}</span>
        <ul>
            <!-- loop from=$value.sublist key=$k value=$v id=$idx -->
            <li>
                <a href="{$v.link}" target="{$v.target}" title="{$v.title}">{$v.title}</a>
                <!-- if $v.sublist -->
                <ul>
                    <!-- loop from=$v.sublist key=$kk value=$vv id=$idxx -->
                    <li><a href="{$vv.link}" target="{$vv.target}" title="{$vv.title}">{$vv.title}</a></li>
                    <!-- /loop -->
                </ul>
                <!-- /if -->
            </li>
            <!-- /loop -->
        </ul>
        <!-- else -->
        <a href="{$value.link}" target="{$value.target}" class="exception">{$value.title}</a>
        <!-- /if -->
    </li>
    <!-- /loop -->
</ul>