这样改就可以了:
<HTML>
<HEAD>
<TITLE> New Document </TITLE>
</HEAD>
<SCRIPT LANGUAGE="JavaScript">
function refreshDiv(context)
{
temp.innerHTML = context;
}
</SCRIPT>
<BODY>
<table>
<tr><td>aaa</td></tr>
<tr><td id=temp>aaa</td></tr>
</table>
<script>
refreshDiv("<tr><td>1111</td></tr>");
</script>
</BODY>
</HTML>
<HTML>
<HEAD>
<TITLE> New Document </TITLE>
</HEAD>
<SCRIPT LANGUAGE="JavaScript">
function refreshDiv(context)
{
temp.innerHTML = context;
}
</SCRIPT>
<BODY>
<table>
<tr><td>aaa</td></tr>
<tr><td id=temp>aaa</td></tr>
</table>
<script>
refreshDiv("<tr><td>1111</td></tr>");
</script>
</BODY>
</HTML>
<tr id="tr1"><th>aaa</th></tr> <tr id="tr2"><th>aaa</th></tr></table>var div = document.getElementById(divId);//获取<tr>的ID
div.innerHTML = context;
<tr id="tr1"><td>aaa</td></tr>
<tr id="tr2"><td>aaa</td></tr>
</table>function addrow1()
{
var div=document.getElementById("tr2")
alert("111")
//var div11 = document.getElementById("table1").childNodes[1].length;
//alert(div11)
alert(div.innerHTML)
//div.innerHTML='<td>bbb</td>';
document.getElementById("table1").rows[0].cells[0].innerHTML='bbb'
}