javascript 获得以秒计的视频时长

时间：2023-03-09 23:33:58
javascript 获得以秒计的视频时长 
<!DOCTYPE html>

<html>

<body>

<h3>演示如何访问 VIDEO 元素</h3>

<video id="myVideo" width="" height="" controls>

  <source src="/i/movie.mp4" type="video/mp4">

  <source src="/i/movie.ogg" type="video/ogg">

  Your browser does not support the video tag.

</video>

<p>请点击按钮来获得以秒计的视频时长。</p>

<p id="demo"></p>

<button onclick="myFunction()">试一下</button>

<script>

function myFunction()

{

var x = document.getElementById("myVideo").duration;

document.getElementById("demo").innerHTML = x;

}

</script>

</body>

</html>