try              {                  Image image = new Bitmap(width, height);                  Graphics g = Graphics.FromImage(image);                    g.CopyFromScreen(x, y, 0, 0, new System.Drawing.Size(width, height));                           string hour = DateTime.Now.Minute.ToString();                  string second = DateTime.Now.Second.ToString();                  image.Save(ScreenshotPath + "\\" + hour + "_" + second + ".jpg");              }              catch               {                 }        ScreenshotPath------------保存路径     string hour = DateTime.Now.Minute.ToString();  string second = DateTime.Now.Second.ToString();------------------------取当前时间，作为文文件名