var tab = document.all.tableId;
for(var i=tab.children.length; i>0; i--)
{
  tab.children[i-1].removeNode(true);
}

解决方案 »

  1.   

    留下
    <table>
    <tr>
    <td>
    </table>
      

  2.   

    <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN">
    <html>
    <head>
    <title> New Document </title>
    <meta name="Generator" content="EditPlus">
    <meta name="Author" content="">
    <meta name="Keywords" content="">
    <meta name="Description" content="">
    <script language="JavaScript">
    <!--function removeRow()
    {
    var t = document.all.ta; for(var i= ta.rows.length-1;i>=0;i--)
    {
    t.deleteRow(i);
    }
    }//-->
    </script>
    </head><body>
    <table id=ta>
    <tr>
    <td>1</td>
    <td>1</td>
    <td>1</td>
    </tr>
    <tr>
    <td>2</td>
    <td>2</td>
    <td>2</td>
    </tr>
    <tr>
    <td>3</td>
    <td>3</td>
    <td>3</td>
    </tr>
    </table>
    <input type=button onclick="removeRow()" value="removerow">
    </body>
    </html>
      

  3.   

    <table id=tab>
    <tr>
    <td>1</td>
    <td>1</td>
    <td>1</td>
    </tr>
    <tr>
    <td>2</td>
    <td>2</td>
    <td>2</td>
    </tr>
    <tr>
    <td>3</td>
    <td>3</td>
    <td>3</td>
    </tr>
    </table>
    <input type=button onclick="mm()" value="removerow"><br>
    <input type=button value="tab.outerHTML" onclick="alert(tab.outerHTML)"><script>
    function mm()
    {
      var tab = document.all.tab;
      for(var i=tab.children.length; i>0; i--)
      {
        tab.children[i-1].removeNode(true);
      }
    }
    </script>
      

  4.   

    var tb=document.getElementById("tb"),e;
    while(e=tb.firstChild)tb.removeChild(e);//remove,thead,tbody...
      

  5.   

    <table id="test">
    <tr>
    <td><div onclick="location.href='http://www.sina.com.cn'">test</div></td>
    <td>fdsafd</td>
    </tr>
    <tr>
    <td>gfd</td>
    <td>gfdgsfdgfs</td>
    </tr>
    </table>
    <script language="javascript">
    document.getElementById("test").outerHTML="<table></table>";
    </script>
      

  6.   

    <table id="test">
    <tr>
    <td><div onclick="location.href='http://www.sina.com.cn'">test</div></td>
    <td>fdsafd</td>
    </tr>
    <tr>
    <td>gfd</td>
    <td>gfdgsfdgfs</td>
    </tr>
    </table>
    <script language="javascript">
    document.getElementById("test").outerHTML="<table><tr><td><img src='http://www.sina.com.cn/images/logo.gif'></td></tr></table>";
    </script>
      

  7.   

    谢谢meizz(梅花雪 封闭开发中)
    你的办法可行,刚才使我自己弄错了