<!DOCTYPEhtml><html><head><metahttp-equiv="Content-type"content="text/html;charset=utf-8"></head><scripttype="text/javascript"charset="utf-8">functionpageLoaded(){varcanvas=document.getElementById('testcanvas');//得到画布varcontext=canvas.getContext('2d');//得到绘图环境参数为绘图环境的类型//检查音频支持varaudiotest=document.createElement('audio');varmp3Support,oggSupport,wavSupport;if(audiotest.canPlayType){/*MP3格式：字符串audio/mpeg;支持的浏览器：IE9+、Chrome　　Vorbis格式：字符串audio/ogg，codecs=”vorbis”;支持的浏览器：Firefox3.5+、Chrome、Opera10.5+　　WAV格式：字符串audio/wav，codecs=”1”;支持的浏览器：Firefox3.5+、Opera10.5+、Chrome*/mp3Support=""!=audiotest.canPlayType('audio/mpeg');oggSupport=""!=audiotest.canPlayType('audio/ogg;codecs="vorbis"');wavSupport=""!=audiotest.canPlayType('audio/wav，codecs="1"');}else{mp3Support=false;oggSupport=false;wavSupport=false;}varsoundFileExtn=oggSupport?'.ogg':mp3Support?'.mp3':wavSupport?'.wav':undefined;if(soundFileExtn){//动态加载audio文件varaudio=newAudio();//等待音频文件加载完成然后再播放audio.addEventListener('canplaythrough',function(){audio.play();});audio.src="/testmusic/8466/8466"+soundFileExtn;}}</script><bodyonload="pageLoaded();"><canvaswidth="1200"height="480"id="testcanvas"></canvas><audiosrc="/testmusic/8466/8466.wav"controls="controls"></audio><audiosrc="/testmusic/8466/8466.mp3"controls="controls2"></audio><audiocontrols="controls3"><!--浏览器会选择第一个支持的格式音频格式MINE-typeMP3audio/mpegOggaudio/oggWavaudio/wav--><sourcesrc="/testmusic/8466/8466.wav"type="audio/wav"><sourcesrc="/testmusic/8466/8466.mp3"type="audio/mpeg"></audio></body></html>