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實例代碼( Tip: 登錄后體驗更佳 )
<!DOCTYPE html> 
<html> 
<head>
<meta charset="utf-8">
<title>W3Cschool教程(w3cschool.cn)</title>
</head>
<body>
    
<p>该实例中我们向 video 元素添加 "timeupdate" 事件。currentTime属性用户获取当前视频/音频的播放位置。</p>
<video id="myVideo" width="320" height="240" controls>
    <source src="/statics/demosource/movie.mp4" type="video/mp4">
    <source src="/statics/demosource/movie.ogg" type="video/ogg">
    您的浏览器不支持 HTML5 video。
</video><br>
<button onclick="setCurTime()" type="button">设置播放位置为 5 秒</button>
<p id="demo"></p>
<script>
// 获取 id="myVideo" 的 video 元素
var x = document.getElementById("myVideo");
// 向 video 元素添加 timeupdate 事件
x.addEventListener("timeupdate", getCurTime);
// 显示 id="demo" 的 p 元素中视频的当前播放位置
function getCurTime() { 
    document.getElementById("demo").innerHTML = "当前播放位置为 " + x.currentTime + " 秒。";
} 
// 设置播放当前位置为 5 秒
function setCurTime() { 
    x.currentTime = 5;
} 
</script> 
</body> 
</html>
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