/// <summary>
        /// 判断该User是否已经关注了TargetUser
        /// </summary>
        /// <param name="UserSysNo"></param>
        /// <param name="TagetSysNo"></param>
        /// <returns></returns>
        public bool IsFans(int UserSysNo, int TagetSysNo)
        {
            bool ret = false;

            using (SQLData data = new SQLData())
            {
                StringBuilder builder = new StringBuilder();
                builder.Append("select SysNo from BLG_Attention where CustomerSysNo=").Append(UserSysNo).Append(" and TargetSysNo=").Append(TagetSysNo).Append(" and DR=").Append((int)AppEnum.State.normal);
                try
                {
                    if (data.CmdtoHasRow(builder.ToString()))
                    {
                        ret = true;
                    }
                }
                catch (Exception exception)
                {
                    //throw exception;
                }
            }
            return(ret);
        }