天天向上

   1: namespace TemplateMethodConsole

   2: {

   3:     abstract class ImageProcessor

   4:     {

   5:         public void ProcRoutine()

   6:         {

   7:             Input();

   8:             ImageProc();

   9:             Output();

  10:         }

  11:         public virtual void Input()

  12:         {

  13:             Console.Write("Load file: ");

  14:         }

  15:         public virtual void ImageProc()

  16:         {

  17:             Console.Write("Image processing: ");

  18:         }

  19:         public virtual void Output()

  20:         {

  21:             Console.Write("Output file: ");

  22:         }

  23:     }

  24: }

   1: namespace TemplateMethodConsole

   2: {

   3:     class Filter2D : ImageProcessor

   4:     {

   5:         public override void Input()

   6:         {

   7:             base.Input();

   8:             Console.WriteLine("Read a bmp-format image");

   9:         }

  10:         public override void ImageProc()

  11:         {

  12:             base.ImageProc();

  13:             Console.WriteLine("Perform Filter2D.");

  14:         }

  15:         public override void Output()

  16:         {

  17:             base.Output();

  18:             Console.WriteLine("Write a bmp-format image");

  19:         }

  20:     }

  21: }

   1: namespace TemplateMethodConsole

   2: {

   3:     class PrymidDown : ImageProcessor

   4:     {

   5:         public override void Input()

   6:         {

   7:             base.Input();

   8:             Console.WriteLine("Read a jpeg-format image");

   9:         }

  10:         public override void ImageProc()

  11:         {

  12:             base.ImageProc();

  13:             Console.WriteLine("Perform downsampling.");

  14:         }

  15:         public override void Output()

  16:         {

  17:             base.Output();

  18:             Console.WriteLine("Write a jpeg-format image");

  19:         }

  20:     }

  21: }

   1: namespace TemplateMethodConsole

   2: {

   3:     class GaussianFilter:ImageProcessor

   4:     {

   5:         public override void Input()

   6:         {

   7:             base.Input();

   8:             Console.WriteLine("Read a xml-format image");

   9:         }

  10:         public override void ImageProc()

  11:         {

  12:             base.ImageProc();

  13:             Console.WriteLine("Perform Gaussian filter.");

  14:         }

  15:         public override void Output()

  16:         {

  17:             base.Output();

  18:             Console.WriteLine("Write a xml-format image");

  19:         }

  20:     }

  21: }

   1: class Program

   2: {

   3:     static void Main(string[] args)

   4:     {

   5:         ImageProcessor ip1 = new PrymidDown();

   6:         ImageProcessor ip2 = new Filter2D();

   7:         ImageProcessor ip3 = new GaussianFilter();

   8:  

   9:         ip1.ProcRoutine();

  10:         Console.WriteLine("-----------------");

  11:         ip2.ProcRoutine();

  12:         Console.WriteLine("-----------------");

  13:         ip3.ProcRoutine();

  14:         Console.WriteLine("-----------------");

  15:         Console.ReadKey();

  16:     }

  17: }