console 命令行工具 X clear

console

function padding()
  {
  document.getElementById('myTable').cellPadding="15"
  }
function spacing()
  {
  document.getElementById('myTable').cellSpacing="15"
  }

<table id="myTable" border="1"> 
  <tbody>
   <tr> 
    <td>100</td> 
    <td>200</td> 
   </tr> 
   <tr> 
    <td>300</td> 
    <td>400</td> 
   </tr> 
  </tbody>
 </table> 
 <br> 
 <input type="button" onclick="padding()" value="改变 Cellpadding"> 
 <input type="button" onclick="spacing()" value="改变 Cellspacing">