易优模板循环调用二级栏目和三级栏目的方法

{eyou:channel type=’first’ currentstyle=’active’}
<li>
<a class=”biglink” href=”{$field.typeurl}”>{$field.typename}</a>
<ul class=”left_snav_ul”>
{eyou:channel typeid=’$field.typeid’ }
<li><a href='{$field.typeurl}’>一{$field.typename}</a></li>
{/eyou:channel}
</ul>
</li>
{/eyou:channel}