eyoucms判断栏目下是否有子栏目，代码如下：
<ul class="m_navul" data-in="fadeInDown" data-out="fadeOutUp">
<li class="active">
<a href="/">首页<span>HOME</span><i class="fa fa-angle-right"></i></a>
</li>
{eyou:channel row='6' type='top' currentstyle="dropdown"}
<li class="{$field.currentstyle}">
{eyou:notempty name="$field.children"}
<a href="javascript:void(0)">
{$field.typename}
<span>
{$field.englist_name}
</span>
<i class="fa fa-angle-right">
</i>
</a>
{eyou:else /}
<a href="{$field.typeurl}">
{$field.typename}
<span>
{$field.englist_name}
</span>
<i class="fa fa-angle-right">
</i>
</a>
{/eyou:notempty} {eyou:notempty name="$field.children"}
<div class="dropdown_menu">
{eyou:channel name="$field.children" row="5" id="field2"}
<a href="{$field2.typeurl}">
{$field2.typename}
<span>
{$field2.englist_name}
</span>
</a>
{/eyou:channel}
</div>
{/eyou:notempty}
</li>
{/eyou:channel}
</ul>