#region 3.1.3 保存裁剪后的图片方法 +ContentResult TemplateCropImg()        /// 
        /// 保存裁剪后的图片方法        /// 
        /// 
             [HttpPost]        public ContentResult TemplateCropImg()        {            string imageUrl = Request.Form["imgUrl"]; //要剪裁图片的地址            int imageWidth = Convert.ToInt32(Request.Form["imgInitW"]); //原图宽度            int imageHeight = Convert.ToInt32(Request.Form["imgInitH"]); //原图高度            int imageW = Convert.ToInt32(Math.Round(Convert.ToDouble(Request.Form["imgW"]))); //缩放后宽度            int imageH = Convert.ToInt32(Math.Round(Convert.ToDouble(Request.Form["imgH"]))); //缩放后高度            int cropWidth = Convert.ToInt32(Request.Form["cropW"]); //剪裁宽度            int cropHeight = Convert.ToInt32(Request.Form["cropH"]); //剪裁高度            int x = Convert.ToInt32(Request.Form["imgX1"]); //剪裁时X坐标            int y = Convert.ToInt32(Request.Form["imgY1"]); //剪裁时Y坐标            string returnData = string.Empty;            //原始图片            using (Image image = Image.FromFile(Server.MapPath(imageUrl)))            {                //将图片缩放                Bitmap bitmap = new Bitmap(imageW, imageH);                Graphics graph = Graphics.FromImage(bitmap);                //设置画布的描绘质量                graph.CompositingQuality = CompositingQuality.HighQuality;                graph.SmoothingMode = SmoothingMode.HighQuality;                graph.InterpolationMode = InterpolationMode.HighQualityBicubic;                graph.DrawImage(image, new Rectangle(0, 0, imageW, imageH), new Rectangle(0, 0, imageWidth, imageHeight), GraphicsUnit.Pixel);                MemoryStream memoryStream = new MemoryStream();                bitmap.Save(memoryStream, System.Drawing.Imaging.ImageFormat.Bmp);                //缩放后的图片                Image zoomImage = Image.FromStream(memoryStream);                //将缩放后的图片进行裁剪                bitmap = new Bitmap(cropWidth, cropHeight);                graph = Graphics.FromImage(bitmap);                //清空画布并以透明背景色填充                graph.Clear(Color.Transparent);                graph.DrawImage(zoomImage, 0, 0, new Rectangle(x, y, cropWidth, cropHeight), GraphicsUnit.Pixel);                //得到裁剪后的图片                string filePath = System.Configuration.ConfigurationManager.AppSettings["UploadDir"] + DateTime.Now.ToString("yyyyMMdd") + "/";                if (!Directory.Exists(Server.MapPath(filePath)))                {                    Directory.CreateDirectory(Server.MapPath(filePath));                }                string fileName = filePath + DateTime.Now.Ticks + ".png";                bitmap.Save(Server.MapPath(fileName), System.Drawing.Imaging.ImageFormat.Png);                graph.Dispose();                bitmap.Dispose();                returnData = "{'status':'success','url':'" + fileName + "'}";            }            //删除之前上传的图片            System.IO.File.Delete(Server.MapPath(imageUrl));            return Content(returnData);        }        #endregion