栏目模型字段无法调用

{module module=xw catid=13 pagesize=6 page=1  order=updatetime }
     <a class="spdtItem" target="_blank"  src="{$t['spdz']}">
          <div class="spdtImg">
               <div class="spdtImgBox"><img src="{dr_get_file($t.thumb)}"></div>
               <div class="spdtMask"></div>
          </div>
          <div class="spdtTitle">{$t.title}</div>
          <div class="spdtDate">{dr_date($t._inputtime, 'Y.m.d')}</div>
     </a>
{/module}

栏目模型字段无法调用是咋回事栏目模型字段无法调用是咋回事栏目模型字段无法调用是咋回事