console 命令行工具 X clear

console

function showRow()
  {
  alert(document.getElementById('myTable').rows[0].innerHTML)
  }

<table id="myTable" border="1"> 
  <tbody>
   <tr> 
    <td>Row1 cell1</td> 
    <td>Row1 cell2</td> 
   </tr> 
   <tr> 
    <td>Row2 cell1</td> 
    <td>Row2 cell2</td> 
   </tr> 
   <tr> 
    <td>Row3 cell1</td> 
    <td>Row3 cell2</td> 
   </tr> 
  </tbody>
 </table> 
 <br> 
 <input type="button" onclick="showRow()" value="显示第一行的 innerHTML">