//图片转成二进制public byte[] GetPictureData(string imagepath){/**/根据图片文件的路径使用文件流打开,并保存为byte[] FileStream FileStream = new FileStream(imagepath, FileMode.Open);byte[] byData = new byte[FileStream.Length];FileStream.Read(byData, 0, byData.Length);FileStream.Close();return byData;}//二进制转图片public Image ReturnPhoto(string imagepath){List<byte> listbit = new List<byte>();listbit.AddRange(GetPictureData(imagepath));byte[] bit = listbit.ToArray();System.IO.MemoryStream ms = new System.IO.MemoryStream(bit);System.Drawing.Image img = System.Drawing.Image.FromStream(ms);return img;}