<?php $avc_a=0;?>
<{looptable table="news_article" as="v" where="cid=28" title="id,title,content,biaoji,jtq1,jtq2,td" sort="sort desc,id desc" limit="4"}>
<li class="define <{if $avc_a==0}>active<{/if}>"> <{/li}> //active
<?php $avc_a++;?>
<{/looptable}>