smarty,key從1開始
<!--{foreach from=$top_goods key=key item=goods name=test}-->
<li >
<div class="neihot0{$smarty.foreach.test.iteration}" ></div>
{$smarty.foreach.test.iteration}
</li>
<!--{/foreach}-->
<!--{if $smarty.foreach._goods_f.last}-->
{if $smarty.foreach.catename.index mod 2}