url：http://localhost/index.htm
<html>
<head>
<title>Ajax</title>
<script type="text/javascript">
function LoadContent()
{
var x;
x = new ActiveXObject("Microsoft.XMLHTTP");
x.onreadystatechange = function ()
{
document.getElementById("div1").innerHTML = x.responsetext; ;
}
x.open("GET","http://www.liveinau.com/migrate/2606.html",true);
x.send();
}
</script>
</head>
<body>
<form>
<input id="Button1" type="button" value="button" onclick="LoadContent()"/>
</form>
<br />
<div id="div1">占位符</div>
</body>
</html>
原文：https://www.cnblogs.com/ryueifu-VBA/p/10583589.html