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源代码：
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<!DOCTYPE html> <html> <head> <meta charset="utf-8"> <title>安科教程(www.ancii.com)</title> </head> <body> <audio id="myAudio" controls> <source src="/statics/demosource/horse.ogg" type="audio/ogg"> <source src="/statics/demosource/horse.mp3" type="audio/mpeg"> 您的浏览器不支持 audio 元素。 </audio><br> <button onclick="getPlaySpeed()" type="button">音频播放速度?</button> <button onclick="setPlaySpeed()" type="button">设置音频快速播放</button> <script> var x = document.getElementById("myAudio"); function getPlaySpeed(){ alert(x.playbackRate); } function setPlaySpeed(){ x.playbackRate = 2; } </script> </body> </html>
运行结果
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