​x
 
<!DOCTYPE html>
<html>
<body>
​
<p>本例使用 addEventListener() 方法将 "load" 事件附加到 iframe 元素。</p>
​
<iframe id="myFrame" src="/"></iframe>
​
<p id="demo"></p>
​
<script>
document.getElementById("myFrame").addEventListener("load", myFunction);
​
function myFunction() {
  document.getElementById("demo").innerHTML = "Iframe is loaded.";
}
</script>
​
</body>
</html>
​