<html>
<body>
<video id="myVideo" width="320" height="240" controls>
<source src="movie.mp4" type="video/mp4">
<source src="movie.ogg" type="video/ogg">
您的浏览器不支持 video 标签。
</source></source></video><br>
<button onclick="enableMute()" type="button">静音</button>
<button onclick="disableMute()" type="button">打开声音</button>
<button onclick="checkMute()" type="button">查看静音状态</button>
<script>
var x = document.getElementById("myVideo");
function enableMute()
{
x.muted = true;
}
function disableMute()
{
x.muted = false;
}
function checkMute()
{
alert(x.muted);
}
</script>
</body>
</html>