c# Dictionary 데이터 변경이 안될때

        void M5DataInit()
        {
            List<string> lkeys = new List<string>(DataClass.Min5Dic.Keys);
            foreach (var key in lkeys)
            {
                DataClass.Min5Dic[key] = 0;
            }
        }

        void M10DataInit()
        {
            List<string> lkeys = new List<string>(DataClass.Min10Dic.Keys);
            foreach (var key in lkeys)
            {
                DataClass.Min10Dic[key] = 0;
            }
        }
        #endregion