<html>
<body>
<button onclick="getPlaySpeed()" type="button">默认的播放速度是多少？</button>
<button onclick="setPlaySpeed()" type="button">把视频设置为慢速播放</button>
<button onclick="setPlaySpeed1()" type="button">把视频设置为加速播放</button>
<br />
<br />
<video id="video1" controls="controls">
<source src="/example/html5/mov_bbb.mp4" type="video/mp4">
<source src="/example/html5/mov_bbb.ogg" type="video/ogg">
Your browser does not support HTML5 video.
</video>
<script>
myVid=document.getElementById("video1");
function getPlaySpeed()
{
alert(myVid.defaultPlaybackRate);
}
function setPlaySpeed()
{
myVid.defaultPlaybackRate=0.5;
myVid.load();
}
function setPlaySpeed1()
{
myVid.defaultPlaybackRate=2;
myVid.load();
}
</script>
</body>
</html>
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