老公的博客

将下面代码直接加到被frame的页面就行了 呵呵
<!--
function iframeAutoFit()
{
try
{
if(window!=parent)
{
var a = parent.document.getElementsByTagName("IFRAME");
for(var i=0; i<a.length; i++) //author:meizz
{
if(a.contentWindow==window)
{
var h1=0, h2=0;
a.parentNode.style.height = a.offsetHeight +"px";
a.style.height = "0px";
if(document.documentElement&&document.documentElement.scrollHeight)
{
h1=document.documentElement.scrollHeight;
}
if(document.body) h2=document.body.scrollHeight;

var h=Math.max(h1, h2);
if(document.all) {h += 4;}
if(window.opera) {h += 1;}
a.style.height = a.parentNode.style.height = h +"px";
}
}
}
}
catch (ex){}
}
if(window.attachEvent)
{
window.attachEvent("onload", iframeAutoFit);
//window.attachEvent("onresize", iframeAutoFit);
}
else if(window.addEventListener)
{
window.addEventListener('load', iframeAutoFit, false);
//window.addEventListener('resize', iframeAutoFit, false);
}
//-->