console 命令行工具 X clear

console

function deleteRow(r)
  {
  var i=r.parentNode.parentNode.rowIndex
  document.getElementById('myTable').deleteRow(i)
  }

<table id="myTable" border="1"> 
  <tbody>
   <tr> 
    <td>Row 1</td> 
    <td><input type="button" value="删除" onclick="deleteRow(this)"></td> 
   </tr> 
   <tr> 
    <td>Row 2</td> 
    <td><input type="button" value="删除" onclick="deleteRow(this)"></td> 
   </tr> 
   <tr> 
    <td>Row 3</td> 
    <td><input type="button" value="删除" onclick="deleteRow(this)"></td> 
   </tr> 
  </tbody>
 </table>