​x
 
<html>
<head>
<script type="text/javascript">
function changeContent()
{
var x=document.getElementById('myTable').rows[0].cells
x[0].innerHTML="新的内容"
}
</script>
</head>
​
<body>
<table id="myTable" border="1">
<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>
</table>
<form>
<input type="button" onclick="changeContent()" value="改变内容">
</form>
</body>
​
</html>
​