/// <summary>
        /// 取得 Aspose.Cells.Picture 的 Image Data
        /// </summary>
        /// <param name="picture">Aspose.Cells.Picture</param>
        /// <returns>Aspose.Cells.Picture 的 Image Data(格式為 byte[])</returns>
        public static byte[] GetPictureData(Aspose.Cells.Picture picture)
        {
            try
            {
                PropertyInfo p = picture.GetType().GetProperty("x90c6e45466e5b849", BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance | BindingFlags.Static);

                object obj = p.GetValue(picture, null);

                p = obj.GetType().GetProperty("xe36c96d8c564b382", BindingFlags.Public | BindingFlags.NonPublic | BindingFlags.Instance | BindingFlags.Static);

                return (p.GetValue(obj, null) as byte[]);
            }
            catch (Exception ex)
            {
                throw new Exception(ex.Message);
            }
        }