
<select class="select01">
{php $field = dr_field_options('chelei',0, 'case');}
{loop $field $i $t}
<option value="01">
<li>
<a class="label {if $i==$get.ceshi}label-success{else}label-default{/if}" href="{dr_search_url($params, 'catid', $t.id, null,'case')}">{$t}</a>
</li>
</option>
{/loop}
</select>
根据选择下拉框的内容和下面的内容筛选出想要的内容

<select class="select01" onchange="usuxx(this.value)"> {php $field = dr_field_options('chelei',0, 'case');} {loop $field $i $t} <option {if $i==$get.chelei}selected{/if} value="{$i}"> {$t} </option> {/loop} </select> <script> function usuxx(v) { var url = "{dr_search_url($params, 'chelei', 'usuxx', null,'case')}"; window.location.href = url.replace('usuxx', v); } </script>我不知道你字段到底是chelei还是ceshi,我就猜测是chelei吧