加入一下代码即可：
function audioAutoPlay(id) {
var audio = document.getElementById(id);
audio.play();
document.addEventListener("WeixinJSBridgeReady", function () {
audio.play();
}, false);
document.addEventListener('YixinJSBridgeReady', function () {
audio.play();
}, false);
}
audioAutoPlay('Jaudio');
if (/i(Phone|P(o|a)d)/.test(navigator.userAgent)) {
$(document).one('touchstart',
function (e) {
$('#Jaudio').get(0).touchstart = true;
$('#Jaudio').get(0).play();
return false;
});
}
