想实现每次打开网页时，背景音乐是随机播放的，但是我的代码在本地就可以实现，上传到服务器之后就
没有播放音乐。不知道怎么回事
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title></title>
<div id="yinyue"></div>
<script>
var sound1="music/夏婉安 - 我还是很喜欢你~1.mp3";
var sound2="music/7jiushiaini~1.mp3";
var sound3="music/大柯 - 我多喜欢你，你会知道.mp3";
var sound4="music/解楠 - 余生你都在.mp3";
var sound5="music/The Chainsmokers - Paris.mp3";
var sound6="music/程jiajia - 我爱你.mp3";
var sound7="music/蔡旻佑 - 我可以.mp3";
var sound8="music/김민승 - 앞으로 (将来).mp3"
var sound9="music/莫文蔚 - 慢慢喜欢你.mp3"
var sound10="music/八三夭乐团 - 想见你想见你想见你.mp3"
var x = Math.random()*10;
var y = Math.round(x);
if (y==0) y = sound1;
else if(y==1) y = sound2;
else if(y==2) y = sound3;
else if(y==3) y = sound4;
else if(y==4) y = sound5;
else if(y==5) y = sound6;
else if(y==6) y = sound7;
else if(y==7) y = sound8;
else if(y==8) y = sound9;
else y = sound10;
document.write('<audio src='+'"' +y+ '" '+'hidden="true" autoplay="true" loop="true"> </audio>')
</script>
</head>
<body>
</body>
</html>
