smarty 第一条数据判断

<div class="shangpin_rightdiv2">
<p>颜色</p>
<ul id="toggle">
<{section name=type_name loop=$strdata7}>
<{if $smarty.section.type_name.first}>
<li class="sp_li"><{$strdata7[type_name].type_name}></li>
<{else}>
<li><{$strdata7[type_name].type_name}></li>
<{/if}>
<{/section}>
</ul>
</div>

=======================

<div class="shangpin_rightdiv2">
	<p>颜色</p>
	<ul id="toggle">
	<li class="sp_li">白色</li>
	<li>黑色</li>
	</ul>
	</div>