有没有类似Unity的RuntimeInitializeOnLoadMethod的装饰器或者load game的回调

Creator 2.x
#1

有没有类似Unity的RuntimeInitializeOnLoadMethod的装饰器或者load game的回调

#2 
     // App初始化

        cc.game.once(cc.game.EVENT_ENGINE_INITED, () => {});

        // 场景初次启动

        cc.director.on(cc.Director.EVENT_AFTER_SCENE_LAUNCH, (scene: cc.Scene) => {});
#3

大佬nb 666