/// 
        /// 保存图片        /// 
        /// 要保存的图片        /// 品质（1L~100L之间，数值越大品质越好）        /// 保存路径        public static void SaveImage(Image srcImage, long quality, string filename)        {            using (EncoderParameters encoderParams = new EncoderParameters(1))            {                encoderParams.Param[0] = new EncoderParameter(Encoder.Quality, quality);                ImageCodecInfo encoder = null;                string ext = Path.GetExtension(filename);                if (string.IsNullOrEmpty(ext))                {                    ext = ".jpg";                }                //根据扩展名得到解码、编码器                foreach (ImageCodecInfo codecInfo in ImageCodecInfo.GetImageEncoders())                {                    if (Regex.IsMatch(codecInfo.FilenameExtension, string.Format(@"(;|^)\*\{0}(;|$)", ext), RegexOptions.IgnoreCase))                    {                        encoder = codecInfo;                        break;                    }                }                Directory.CreateDirectory(Path.GetDirectoryName(filename));                srcImage.Save(filename, encoder, encoderParams);            }        }