<script type="text/javascript"> function load(){ parent.document.getElementById("myiframe").style.height = document.body.scrollHeight +"px"; parent.document.getElementById("myiframe").style.width = document.body.scrollWidth +"px"; } </script> <body onLoad="load();">
或
<iframe name="main" src="#" frameborder="0" scrolling="no" style="min-width:750px;" scrolling="auto" , 200);
</script>