在游戏里直接调用pause,然后resume，背景音乐先消失，后出现，
在wx分享成功的回调函数里，调用resume打印显示调用成功，但并未播放音乐。

wx.shareAppMessage({
title: "小猪佩奇身上纹，掌声送给社会人",

imageUrl: "images/boss.png",
success: function () {
gameex.bar.shareCount += 1;
gameex.bar.clearCountDown();
gameex.snakeSelf.updateState(EN_SNAKE_STATE_NORMAL);
gameex.snakeSelf.setLength(3)
gameex.buffManager.buildBuff(EN_SNAKE_BUFF_ID_1, gameex.snakeSelf, [4000]);
// gameex.snakeSelf.speed = gameex.snakeSelf.speedBak

gameex.resume()

gameex.gameInfo.visible = true;
gameex.bar.destoyRankSprite() 
this.nCountDown = 15;
// console.log(gameex.snakeSelf)
}

})

//暂停
GameEx.prototype.pause = function () {
console.log("停止播放音乐")
Laya.SoundManager.stopMusic();
//停止游戏主循环
Laya.timer.clear(this, this.onLoop);
//移除舞台的鼠标移动事件

Laya.stage.off(Laya.Event.MOUSE_MOVE);
} 
//恢复
GameEx.prototype.[i][b]resume [/b][/i]= function () {

//在循环中创建敌人
Laya.timer.frameLoop(1,this,this.onLoop);
console.log("恢复播放音乐")
[i][b]Laya.SoundManager.stopMusic();

Laya.SoundManager.playMusic("res/sound/BGM.mp3", 0, null);[/b][/i]
// var test = new EffectFlicker();
// test.startRun();
// test.startRun();
// test.create(); 
// var test = new Q1Buff1(); 
Laya.stage.off(Laya.Event.MOUSE_DOWN);
Laya.stage.off(Laya.Event.MOUSE_MOVE);
Laya.stage.off(Laya.Event.MOUSE_UP)
Laya.stage.off(Laya.Event.MOUSE_OUT);

// 鼠标按下事件

Laya.stage.on(Laya.Event.MOUSE_DOWN, this.snakeSelf, this.snakeSelf.onMouseDown);
Laya.stage.on(Laya.Event.MOUSE_UP, this.snakeSelf, this.snakeSelf.onMouseUp);
Laya.stage.on(Laya.Event.MOUSE_OUT, this.snakeSelf, this.snakeSelf.moveOut);
}