//声明：ios系统不支持falsh,故而采用各平台支持的html5 audio标签

<script>

//创建audio标签

var audio = document.createElement("audio");

//增加audio 属性id

audio.id = "audio";

//设置播放文件路径

audio.src = "sound/music.mp3";

//设置是否循环播放

audio.loop = "loop";

//获取当前客户端环境信息

var ua = window.navigator.userAgent.toLowerCase();

//判断当前环境并做出相应处理

if(ua.match(/iphone/i) == "iphone" || ua.match(/ipod/i) == "ipod" || ua.match(/ipad/i) == "ipad"){

//当前是ios相关环境，为canvas节点添加事件touchstart监听

document.getElementById("canvas").addEventListener("touchstart", function(){

//音频播放

audio.play();

});

}else if(ua.match(/android/i) == "android"){

//对android系统不做处理

}else{

//对于非ios、android系统，则采用监听click事件即可

document.getElementById("canvas").addEventListener("click", function(){

//音频播放

audio.play();

});

}

</script>