<!DOCTYPE html>
<html>
<body>
<h3>演示如何访问 PARAM 元素</h3>
<object data="/img/horse.mp3">
<param id="myParam" name="autoplay" value="true">
</object>
<p>点击按钮来获得参数的名称。</p>
<p id="demo"></p>
<button onclick="myFunction()">试一下</button>
<script>
function myFunction()
{
var x = document.getElementById("myParam").name;
document.getElementById("demo").innerHTML=x;
}
</script>
</body>
</html>