//
    void UnitTest()
    {
        DirectX theDirectX = new DirectX();

        // 加入形狀
        ShapeContainer theShapeContainer = new ShapeContainer();

        theShapeContainer.AddShape(new Cube(theDirectX));
        theShapeContainer.AddShape(new Cylinder(theDirectX));
        theShapeContainer.AddShape(new Sphere(theDirectX));

        // 繪圖
        theShapeContainer.RunVisitor(new DrawVisitor());

        // 頂點數
        VectorCountVisitor theVectorCount = new VectorCountVisitor();

        theShapeContainer.RunVisitor(theVectorCount);
        Debug.Log("頂點數:" + theVectorCount.Count);

        // 圓體積
        SphereVolumeVisitor theSphereVolume = new SphereVolumeVisitor();

        theShapeContainer.RunVisitor(theSphereVolume);
        Debug.Log("圓體積:" + theSphereVolume.Volume);
    }
    //
    void UnitTest()
    {
        DirectX theDirectX = new DirectX();

        // 加入形状
        ShapeContainer theShapeContainer = new ShapeContainer();

        theShapeContainer.AddShape(new Cube(theDirectX));
        theShapeContainer.AddShape(new Cylinder(theDirectX));
        theShapeContainer.AddShape(new Sphere(theDirectX));

        // 绘圆
        theShapeContainer.RunVisitor(new DrawVisitor());

        // 顶点数
        VectorCountVisitor theVectorCount = new VectorCountVisitor();

        theShapeContainer.RunVisitor(theVectorCount);
        Debug.Log("顶点数:" + theVectorCount.Count);

        // 圆体积
        SphereVolumeVisitor theSphereVolume = new SphereVolumeVisitor();

        theShapeContainer.RunVisitor(theSphereVolume);
        Debug.Log("圆体积:" + theSphereVolume.Volume);
    }