<iframe frameborder="0" src="http://網(wǎng)址" class="iframe" frameborder="0" id="test" onload="this.height=100" width="762px"  scrolling="no"></iframe>

<script type="text/javascript">

function reinitIframe(){

var iframe = document.getElementById("test");

try{

var bHeight = iframe.contentWindow.document.body.scrollHeight;

var dHeight = iframe.contentWindow.document.documentElement.scrollHeight;

var height = Math.max(bHeight, dHeight);

iframe.height = height;

console.log(height);

}catch (ex){}

}

window.setInterval("reinitIframe()", 200);

</script>