在线运行代码 - 菜鸟教程

<!DOCTYPE html> 
<html>
<head> 
<meta charset="utf-8"> 
<title>菜鸟教程(cainiaoplay.com)</title>
</head>
<body> 

<button onclick="enableMute()" type="button">静音</button>
<button onclick="disableMute()" type="button">启动音效</button>
<button onclick="checkMute()" type="button">检查静音状态</button>
<br> 
<video id="video1" controls="controls">
  <source src="mov_bbb.mp4.html" type="video/mp4">
  <source src="mov_bbb.ogg.html" type="video/ogg">
  您的浏览器不支持 HTML5 video  标签。
</video>

<script>
myVid=document.getElementById("video1");
function enableMute()
{ 
  myVid.muted=true;
} 
function disableMute()
{ 
  myVid.muted=false;
} 
function checkMute()
{ 
  alert(myVid.muted);
} 
</script> 

<p>Video courtesy of <a href="http://www.bigbuckbunny.org/" target="_blank">Big Buck Bunny</a>.</p>

</body> 
</html>
源代码

动行结果
