<bgsound src="sou/oppo.mp3" loop="3">有错吗？

循环3次，不知道你需要什么效果。。。
贴段我用的代码吧，带关闭功能的，无限循环，希望对你有帮助

<div id="Play">
<bgsound id="sound" src="" loop="-1" volume="100%" autostart="true" >
<img id="stat" src="global/Images/off.png" alt="" onclick="playSound();">
<input id="status" value="" type="hidden">

<script language="javascript">
var music=new Array("","global/Sound/A.mp3","");
var musicimg=new Array("global/Images/off.png","global/Images/on.png","");
var musicalt=new Array("打开音效","关闭音效","");
document.getElementById("status").value=0;
function playSound(){
if(0==document.getElementById("status").value){
document.getElementById("status").value=1;
}else{