本文实例讲述了Javascript动态创建表格及删除行列的方法。分享给大家供大家参考。具体实现方法如下：
<!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>动态创建表格(还能删除行列)</title>
<style type="text/css">
body,div
{
margin:0;
padding:0;
font-size:14px;
}
table
{
margin:0 auto;
}
td
{
border:1px solid green;
text-align:center;
}
</style>
<script type="text/javascript">
//动态创建表格
function createTable() {
var divMain = document.getElementById("divMain");
removeAllChild(divMain); //删除上次添加的表格
var myTable = document.createElement("table");
myTable.id = "DynamicTable";
var myRow = document.getElementById("myRow").value;
var myCol = document.getElementById("myCol").value;
var trNode;
var tdNode;
var strTmp;
for (var i = 1; i <= myRow; i++) {
trNode = myTable.insertRow(-1);
for (var j = 1; j <= myCol; j++) {
strTmp ="第"+ i + "行,第"+ j + "列";
tdNode = trNode.insertCell(-1);
tdNode.innerHTML = "<a href='javascript:void(0);'>" + strTmp + "</a>";
}
}
divMain.appendChild(myTable); //把表格添加到div中
//event.srcElement.disabled = "true"; //添加按钮禁用
}
//删除指定节点下的所有子节点
function removeAllChild(nodeObj) {
while (nodeObj.hasChildNodes()) {
nodeObj.removeChild(nodeObj.firstChild);
}
}
//删除行
function DeleteRow() {
var rowNum = document.getElementById("delRow").value;
var tbl = document.getElementById("DynamicTable");
if (tbl == null) {
alert('请先创建表格');
return;
}
if ((rowNum <= tbl.rows.length) && (rowNum > 0)) {
tbl.deleteRow(rowNum-1);
}
else {
alert('请输入一个有效的行!');
}
}
//删除列
function DeleteCol() {
var colNum = document.getElementById("delCol").value;
var tbl = document.getElementById("DynamicTable");
if (tbl == null) {
alert('请先创建表格');
return;
}
if(tbl.rows.length<=0) {
alert('表格不存在行');
return;
}
if ((colNum <= tbl.rows[0].cells.length) && (colNum > 0)) {
for (var i = 0; i < tbl.rows.length; i++) {
tbl.rows[i].deleteCell(colNum - 1);
}
}
else {
alert('指定列不存在');
}
}
</script>
</head>
<body>
请输入行数<input type="text" id="myRow" />,请输入列数
<input type="text" id="myCol" /><br />
<input type="button" value="创建表格" onclick="createTable()" /><br />
<input type="text" id="delRow" /><input type="button" value="删除行"
onclick="DeleteRow()" /><br />
<input type="text" id="delCol" /><input type="button" value="删除列"
onclick="DeleteCol()" /><br />
<div id="divMain">
</div>
</body>
</html>
希望本文所述对大家的javascript程序设计有所帮助。
