Jquery使用(3)：得到表格中的值

1.JS部分

<script type="text/javascript" src="JSStyle/jquery-1.6.min.js"></script>
    <script type="text/javascript" language="javascript">
        $(function() {
            $(".demoBtn").click(function() {
                var trr = $(this).parent().parent();
                var tmp = $("#tdID", trr).text();
            
                alert(tmp);
            });
        });
    
    </script>

 

2.界面

 <table>
        <tr id="tr1">
        <td>
         <a class="demoBtn">get</a>
        </td>
        <td id="tdID">5</td>
        </tr>
        <tr id="tr2">
        <td>
         <a class="demoBtn">get</a>
        </td>
        <td id="tdID">6</td>
        </tr>
        </table>