<html>
<body>
<video id="myVideo" width="320" height="240">
<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="enableControls()" type="button">启用控件</button>
<button onclick="disableControls()" type="button">禁用控件</button>
<button onclick="checkControls()" type="button">查看控件状态</button>
<script>
var x = document.getElementById("myVideo");
function enableControls()
{
x.controls = true;
x.load();
}
function disableControls()
{
x.controls = false;
x.load();
}
function checkControls()
{
alert(x.controls);
}
</script>
</body>
</html>