请问，为什么我的龙骨动画导入laya后，在动画片段转换之间(如第0个到第1个）会有残影？动画资源是直接用龙骨的官方DEMO转的。部分代码片段如下：
private _onAnimationCreated(ani)
{
console.log("ani created:" + ani);
this._hero = ani;
this.addChild(this._hero);
this._hero.pos(300, 400);
this._hero.scale(0.3, 0.3);
this._hero.on(Laya.Event.STOPPED, this, this._onPlayed);
this._play();
}
private _play()
{
if (this._curAction >= this._hero.getAnimNum())
{
this._curAction = 0;
}
this._hero.play(this._curAction, false);
++this._curAction;
}
private _onPlayed()
{
console.log("played");
this._play();
}
