主页面main.html
代码语言：js复制<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html>
<head>
<title>New Document </title>
</head>
<body>
<style type="text/css">
.iframestyle
{
height: expression(1);
aho: expression(autoResize());
}
</style>
<script type="text/javascript">
function autoResize() {
try {
document.getElementById("frm1").style.height = window.frames["frm1"].document.body.scrollHeight;
}
catch (e) { }
}
</script>
iframe之前的文字<hr/>
<iframe name="frm1" src='frm.html' marginwidth="0" marginheight="0" frameborder="0" scrolling="no" width="100%" class="iframestyle" id="frm1" ></iframe>
<hr/>iframe之后的文字
</body>
</html>框架子页frm.html
代码语言：js复制<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html>
<head>
<title>New Document </title>
</head>
<body>
<script language="JavaScript" type="text/javascript">
function fnShort() {
document.getElementById("diva").innerHTML = '<br />iframe变短<br />';
}
function fnLong() {
document.getElementById("diva").innerHTML = '<br />iframe变长<br />iframe变长<br />iframe变长<br />iframe变长<br />iframe变长<br />iframe变长<br />iframe变长<br />iframe变长<br />iframe变长<br />';
}
</script>
<a href="#" onclick="fnShort();">iframe变短</a> <a href="#" onclick="fnLong();">iframe变长</a>
<div id="diva">
<br />
iframe变长<br />
iframe变长<br />
iframe变长<br />
iframe变长<br />
iframe变长<br />
iframe变长<br />
iframe变长<br />
iframe变长<br />
iframe变长<br />
</div>
<a href="frm2.html">转到一个新的页面</a>
</body>
</html>子页面2: frm2.html
代码语言：js复制<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html>
<head>
<title>New Document </title>
</head>
<body>
<a href="frm.html">返回frm.html</a>
</body>
</html>在IE8上失效(不过IE8上可以通过设置源代码的Meta，让IE8以兼容性视图浏览，也算是一种IE8下的解决办法)
