<!--第一层：调用共享栏目顶级数据-->
{list action=category module=share pid=0}
<li id="dr_nav_{$t.id}" class="menu-dropdown classic-menu-dropdown {if $catid && in_array($catid, $t.catids)} active{/if}">
    <a href="{$t.url}" title="{$t.name}">{$t.name}</a>
    {if $t.child}
    <ul class="dropdown-menu pull-left">
        <!--第二层数据-->
        {list action=category module=share pid=$t.id return=t2}
        <li class="{if $t2.child} dropdown-submenu{/if} {if $catid && in_array($catid, $t2.catids)} active{/if}">
            <a href="{$t2.url}" class="nav-link nav-toggle " title="{$t2.name}" >
            {$t2.name}
            </a>
            {if $t2.child}
            <ul class="dropdown-menu pull-left">
                <!--第三层数据-->
                {list aaction=category module=share pid=$t2.id return=t3}
                <li class="{if $catid && in_array($catid, $t3.catids)} active{/if}">
                    <a href="{$t3.url}" >
                    {$t3.name}
                    </a>
                </li>
                {/list}
            </ul>
            {/if}
        </li>
        {/list}
    </ul>
    {/if}
</li>
{/list}