<td>   <select name="awardsRank" id="rank${id }">           <option value="-1">1</option>           <option value="0">2</option>            <option value="1">3</option>            <option value="2">4</option>     </select></td><td>       <input name="" type="button" onclick="voteBut(${id})" value="确认" /> </td>

<script type="text/javascript">    function voteBut(obj){        var rank = $("#rank"+obj).val();            }</script>