image.Height-copyImage.Height, copyImage.Width, copyImage.Height), 0, 0, copyImage.Width, 

copyImage.Height, GraphicsUnit.Pixel);

                g.Dispose();

                //保存加水印过后的图片,删除原始图片

                string newPath = Server.MapPath(".") + "/UploadFile/" + fileName + "_new" + 

extension;

                image.Save(newPath);

                image.Dispose();

                if(File.Exists(path))

                {

                    File.Delete(path);

                }

                Response.Redirect(newPath);

            }

        }

//生成缩略图#region //生成缩略图

        /**//// <summary>

        /// 生成缩略图

        /// </summary>

        /// <param name="str_originalImagePath">源图路径（物理路径）</param>

        /// <param name="str_ThumbnailPath">缩略图路径（物理路径）</param>

        /// <param name="i_width">缩略图宽度</param>

        /// <param name="i_height">缩略图高度</param>

        /// <param name="str_mode">生成缩略图的模式</param>

        public static void MakeThumbnail(string str_originalImagePath,string str_ThumbnailPath,int 

i_width,int i_height,string str_mode)

        {

            System.Drawing.Image img_OriginalImage = Image.FromFile(str_originalImagePath);