/// <summary>
        /// 保存图片内容
        /// </summary>
        /// <param name="strName">图片名称</param>
        /// <param name="strPath">图片路径</param>
        /// <param name="strDescription">图片说明</param>
        /// <param name="strImage">图片内容</param>
        private void SaveTable(string strName, string strPath,string strDescription,byte[] strImage)
        {
            try
            {

                using (SqlConnection conn = new SqlConnection("Data Source=192.168.0.21;Initial Catalog=Book Keeping;User ID=sa;Password=sa;Connection Timeout=60;"))
                {
                    conn.Open();
                    SqlCommand comm = new SqlCommand();
                    string strSql = "Insert into PictureInfo(strName,strPath,strDescription,strImageContent) values (@Name,@Path,@Description,@Image)";
                    comm.CommandText = strSql;
                    comm.CommandType = CommandType.Text;
                    comm.Connection = conn;
                    comm.Parameters.Add("@Name",SqlDbType.VarChar);
                    comm.Parameters.Add("@Path",SqlDbType.VarChar);
                    comm.Parameters.Add("@Description",SqlDbType.VarChar);
                    comm.Parameters.Add("@Image",SqlDbType.Image);

                    comm.Parameters[0].Value = strName;
                    comm.Parameters[1].Value = strPath;
                    comm.Parameters[2].Value = strDescription;
                    comm.Parameters[3].Value = strImage;

                    comm.ExecuteNonQuery();
                }
            }
            catch(Exception)
            {
            }
        }