在HTML中每次播放速率改变时执行脚本?
在HTML中,使用onratechange 属性可在每次HTML中播放速率改变时执行脚本。
实例
你可尝试运行以下代码以实现onratechange 属性——
<!DOCTYPE html>
<html>
<body>
<video id = "myid" width = "320" height = "176" controls onratechange = "display()">
<source src = "/html5/foo.ogg" type = "video/ogg" />
<source src = "/html5/foo.mp4" type = "video/mp4" />
Your browser does not support the video element.
</video>
<p id="test">Change the speed of the video</p>
<input type = "range" min = "0.1" max = "3" step = "0.2" value = "1"oninput = "update(this)">
<script>
function display() {
document.getElementById("test").innerHTML = "Speed: " + document.getElementById("myid").playbackRate;
}
function update(ob) {
document.getElementById("myid").playbackRate = ob.value;
}
</script>
</body>
</html>输出

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