iframe內容未知,高度可預測
阿新 • • 發佈:2019-01-03
<iframe src="backtop.html" frameborder="0" scrolling="no" id="external-frame" onload="setIframeHeight(this)"></iframe>
<script type="text/javascript">/*
* When the iframe is on a different subdomain, uncomment the following line
* and change "example.com" to your domain.
*/
function setIframeHeight(iframe) {
if (iframe) {
var iframeWin = iframe.contentWindow || iframe.contentDocument.parentWindow;
if (iframeWin.document.body) {
iframe.height = iframeWin.document.documentElement.scrollHeight || iframeWin.document.body.scrollHeight;
}
}
}; window.onload = function () {
setIframeHeight(document.getElementById('mainFrame'));
};
</script>