使用DOM创建新元素,然后添加到相应的父级节点中即可
<!DOCTYPE HTML>
<html>
<head>
<meta charset="utf-8">
<title></title>
<script>
window.onload=function ()
{
var oTab=document.getElementById('tab1');
var oBtn=document.getElementById('btn1');
var oName=document.getElementById('name');
var oAge=document.getElementById('age');
oBtn.onclick=function ()
{
var oTr=document.createElement('tr');
var oTd=document.createElement('td');
oTd.innerHTML=oTab.tBodies[0].rows.length+1;
oTr.appendChild(oTd);
var oTd=document.createElement('td');
oTd.innerHTML=oName.value;
oTr.appendChild(oTd);
var oTd=document.createElement('td');
oTd.innerHTML=oAge.value;
oTr.appendChild(oTd);