Linq语言，由红色部分可直接代替绿色（List，dictionary）

 /// <summary>
        /// 获取最近5分钟缓存的车量
        /// </summary>
        /// <param name="carNo"></param>
        /// <returns></returns>
        public List<string> GetLastMessageOfFiveMinuteCarNo()
        {
            List<string> carList = new List<string>();
            var unixTimestamp = BasicUtil.ToUnixTime(DateTime.Now);
            using (var client = this.service.GetClient())
            {
                carList = client.GetRangeFromSortedSetByHighestScore(this.KEY_FAULTBILLINDEX, unixTimestamp - FromTime * , unixTimestamp);
            }
            List<string> result = new List<string>();
            foreach (var item in carList) //去掉非Current
            {
                if (item.Contains(EVRConst.MasterCatchFlag))
                {
                    result.Add(item);
                }
            }
            //carList.Select(x => x.Contains(EVRConst.MasterCatchFlag)).ToList();
            return result;
        }