<select class="form-control selectpage sp_input" id="type">
      {foreach $link as $k=>$v}
           <option value="{$v.qr_type}" >{$v.typename}</option>
      {/foreach}
</select>

  var options=$("#type option:selected");  //获取选中的option
  var value = options.val();   
  var text = options.text();