layabox 直接找到js按照commit内容自己修改，编译替换引擎都试过了，没有效果
_update() {
this._timeKeeper.update();
let state = this._state;
let delta = this._timeKeeper.delta * this._playbackRate;
state.update(delta);
state.apply(this._skeleton);
this._currentPlayTime = state.getCurrentPlayTime(this.trackIndex);
if (!this._state || !this._skeleton) {
return;
}
this._skeleton.updateWorldTransform();
this.spineItem.render(this._currentPlayTime);
this.owner.repaint();
}
