经测试代码如下：
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<Meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Js动态创建表格、删除行例</title>
<link rel="stylesheet" href="tab.css" />
<script type="text/javascript" src="../Day26/doctool.js"></script>
<script type="text/javascript">
/**
* 动态创建表格，删除行列
*
* @param
* @arrange (512.笔记) jb51.cc
**/
function createTab1()
{
var tabNode = doc.createElement("table");
var tbdNode = doc.createElement("tbody");
var trNode = doc.createElement("tr");
var tdNode = doc.createElement("td");
var textNode = doc.createTextNode("单元格一");
tdNode.appendChild(textNode);
trNode.appendChild(tdNode);
tbdNode.appendChild(trNode);
tabNode.appendChild(tbdNode);
byTag("div")[0].appendChild(tabNode);
}
function createTab()
{
var tabNode = doc.createElement("table");
//tabNode.id = "tabid";
tabNode.setAttribute("id","tabid");
var row = byName("rownum")[0].value;
var col = byName("colnum")[0].value;
for(var x=1; x<=row; x++)
{
var trNode = tabNode.insertRow();
for(var y=1; y<=col; y++)
{
var tdNode = trNode.insertCell();
tdNode.innerHTML = x+"...."+y;
}
}
byTag("div")[0].appendChild(tabNode);
event.srcElement.disabled = true;
}
function delRow()
{
var tabNode = byId("tabid");
if(tabNode==null)
{
alert("表格不存在 ");
return;
}
var rownum = byName("delrow")[0].value;
if(rownum>0 && rownum<=tabNode.rows.length)
tabNode.deleteRow(rownum-1);
else
{
alert("删除的行不存在，学习数数很重要");
}
}
function delCol()
{
var tabNode = byId("tabid");
if(tabNode==null)
{
alert("表格不存在 ");
return;
}
var colnum = byName("delcol")[0].value;
if(colnum>0 && colnum<=tabNode.rows[0].cells.length)
{
for(var x=0;x<tabNode.rows.length; x++)
{
tabNode.rows[x].deleteCell(colnum-1);
}
}
else
{
alert("删除的列不存在");
}
}
</script>
</head>
<body>
<!--
通过页面的按钮可以动态的创建一个表格。
-->
行：<input type="text" name="rownum" /><br />
列：<input type="text" name="colnum" /><br />
<input type="button" value="创建表格" onclick="createTab()" /><br />
<input type="text" name="delrow" />
<input type="button" value="删除行" onclick="delRow()" />
<br />
<input type="text" name="delcol" />
<input type="button" value="删除列" onclick="delCol()" />
<br />
<br />
<div>
</div>
</body>
</html>