​x
 
<!DOCTYPE html>
<html>
<body>
​
<h3>演示如何访问 AUDIO 元素</h3>
​
<audio id="myAudio" controls>
  <source src="/i/horse.ogg" type="audio/ogg">
  <source src="/i/horse.mp3" type="audio/mpeg">
  Your browser does not support the audio element.
</audio>
​
<p>请点击按钮来获得以秒计的音频时长。</p>
​
<p id="demo"></p>
​
<button onclick="myFunction()">试一下</button>
​
<script>
function myFunction()
{
var x = document.getElementById("myAudio").duration;
document.getElementById("demo").innerHTML = x;
}
</script>
​
</body>
</html>
​