用C#将图片转换为另一种格式的图像。

代码如下：

public void ImageFormatter(string sourcePath, string distationPath, string format) {
  System.Drawing.Bitmap bitmap = new System.Drawing.Bitmap(sourcePath);
  switch (format.ToLower()) {
    case "bmp":
      bitmap.Save(distationPath, System.Drawing.Imaging.ImageFormat.Bmp);
      break;
    case "emf":
      bitmap.Save(distationPath, System.Drawing.Imaging.ImageFormat.Emf);
      break;
    case "gif":
      bitmap.Save(distationPath, System.Drawing.Imaging.ImageFormat.Gif);
      break;
    case "ico":
      bitmap.Save(distationPath, System.Drawing.Imaging.ImageFormat.Icon);
      break;
    case "jpg":
      bitmap.Save(distationPath, System.Drawing.Imaging.ImageFormat.Jpeg);
      break;
    case "png":
      bitmap.Save(distationPath, System.Drawing.Imaging.ImageFormat.Png);
      break;
    case "tif":
      bitmap.Save(distationPath, System.Drawing.Imaging.ImageFormat.Tiff);
      break;
    case "wmf":
      bitmap.Save(distationPath, System.Drawing.Imaging.ImageFormat.Wmf);
      break;
    default: throw new Exception("无法转换此格式！");
  }
}

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