//----引入必要的命名空间using System.IO;using System.Drawing.Imaging;//----代码部分----//        private byte[] photo;//公用缓冲区        public string SourFilePath;//源图片文件路径        public string ObjFilePath;//目标图片路径        public int FileToStream()//文件到流的转换        {            Image img = new Bitmap(SourFilePath);            MemoryStream stream = new MemoryStream();            img.Save(stream, ImageFormat.Bmp);            BinaryReader br = new BinaryReader(stream);            photo = stream.ToArray();            stream.Close();            return 0;        }        public Image ShowPic()//根据流显图        {            byte[] bytes = photo;            MemoryStream ms = new MemoryStream(bytes);            ms.Position = 0;            Image img = Image.FromStream(ms);            ms.Close();            return img;        }        public int StreamToFile()//反向转换        {            byte[] bytes = photo;            FileStream fs = new FileStream(ObjFilePath, FileMode.Create, FileAccess.Write);            fs.Write(bytes, 0, bytes.Length);            fs.Flush();            fs.Close();             return 0;        }