//更新红绿灯状态

        public void UpdateLight(object obj)

        {

            try

            {

                Dictionary<string, string> dic_light = obj as Dictionary<string, string>;

                List<Dictionary<string, string>> dic_lights = new List<Dictionary<string, string>>();

                for (int i = 0; i < 4; i++)

                {

                    Dictionary<string, string> dic = new Dictionary<string, string>();

                    foreach (var item in dic_light)

                    {

                        if (Convert.ToInt32(item.Key) > i * 40 && Convert.ToInt32(item.Key) <= (i + 1) * 40)

                        {

                            dic.Add(item.Key, item.Value);

                        }

                    }

                    dic_lights.Add(dic);

                }

                for (int i = 0; i < dic_lights.Count; i++)

                {

                    Thread thread = new Thread(new ParameterizedThreadStart(DealLight));

                    thread.Start(dic_lights[i]);

                }

            }

            catch (Exception ex)

            {

         &nbs