/// <summary>
        /// 获取排行榜
        /// </summary>
        /// <param name="userFlag">用户标志</param>
        public void GetCharts(String userFlag)
        {
            try
            {
                // 用户获取排行榜
                LotteryDrawBll          lotteryDrawBll = new LotteryDrawBll();
                List <LotteryDrawModel> chartData      = lotteryDrawBll.GetCharts(ref userFlag);

                HandlerMsg.WriteResponseMsg(HttpContext.Current, true, userFlag, ModelHandler <LotteryDrawModel> .ToDataTable(chartData));
            }
            catch (Exception)
            {
                HandlerMsg.WriteResponseMsg(HttpContext.Current, false, CommonConst.FailGetData);
            }
        }
        /// <summary>
        /// 抽奖操作
        /// </summary>
        /// <param name="userFlag">用户标志</param>
        public void LotteryDraw(String userFlag)
        {
            try
            {
                // 用户抽奖
                LotteryDrawBll lotteryDrawBll = new LotteryDrawBll();
                lotteryDrawBll.LotteryDraw(userFlag);

                HandlerMsg.WriteResponseMsg(HttpContext.Current, true, CommonConst.LotteryDrawSuccess);
            }
            catch (Exception ex)
            {
                HandlerMsg.WriteResponseMsg(HttpContext.Current, false, ex.Message);
            }
        }