[]我就在unity中加了一个cube，导出后，在laya预览中怎么会有2个cube，而且位置还不一样，也没有贴图

/*

* name;

*/

var scene = (function () {

    function scene() {



 //初始化引擎

        Laya3D.init(0, 0,true);

        Laya.stage.scaleMode = Laya.Stage.SCALE_FULL;

        Laya.stage.screenMode = Laya.Stage.SCREEN_NONE;

        Laya.Stat.show();

        //添加3D场景

        var scene = Laya.Scene.load("h5/LayaScene_01/1.ls");

        Laya.stage.addChild(scene);

        //创建摄像机(横纵比，近距裁剪，远距裁剪)

        var camera= new Laya.Camera( 0, 0.1, 1000);

          //添加方向光

        var directionLight = scene.addChild(new Laya.DirectionLight());

        directionLight.ambientColor = new Laya.Vector3(0.6, 0.6, 0.6);

        directionLight.specularColor = new Laya.Vector3(0.6, 0.6, 0.6);

        directionLight.diffuseColor = new Laya.Vector3(1.6, 1.6, 1.6);

        directionLight.direction = new Laya.Vector3(1, -1, 0);

        //加载到场景

        scene.addChild(camera);

        //移动摄像机位置

        camera.transform.position=new Laya.Vector3(-8, 4, 15);

        //旋转摄像机角度

        camera.transform.rotate(new Laya.Vector3( -8, -25, 0), true, false);

    }

    return scene;

}());

scene();