string connection = "127.0.0.1:6379,password=xxxxx,connectRetry=5";        [TestMethod]        public void TestSet()        {            var mutlti = StackExchange.Redis.ConnectionMultiplexer.Connect(connection);            var db = mutlti.GetDatabase(0);            db.HashSetAsync("student1", new StackExchange.Redis.HashEntry[] {                new StackExchange.Redis.HashEntry("name", "song"),                new StackExchange.Redis.HashEntry("age", 11),                new StackExchange.Redis.HashEntry("sex", "boy")            }).GetAwaiter().GetResult();            db.HashSetAsync("student2", new StackExchange.Redis.HashEntry[] {                new StackExchange.Redis.HashEntry("name", "wang"),                new StackExchange.Redis.HashEntry("age", 22),                new StackExchange.Redis.HashEntry("sex", "girl")            }).GetAwaiter().GetResult();            mutlti.Close(true);        }        [TestMethod]        public void TestGetList()        {            var mutlti = StackExchange.Redis.ConnectionMultiplexer.Connect(connection);            var endpoints = mutlti.GetEndPoints();            List<string> keyList = new List<string>();            foreach (var ep in endpoints)            {                var server = mutlti.GetServer(ep);                var keys = server.Keys(0, "*");                foreach (var item in keys)                {                    keyList.Add((string)item);                }            }            var db = mutlti.GetDatabase(0);            mutlti.Close(true);            throw new Exception(string.Join(",", keyList));        }        [TestMethod]        public void TestGetTime()        {            var mutlti = StackExchange.Redis.ConnectionMultiplexer.Connect(connection);            var db = mutlti.GetDatabase(0);            var server = mutlti.GetServer(mutlti.GetEndPoints()[0]);            var timeNow = server.Time().ToUniversalTime();            var time = db.KeyTimeToLive("student2");            var expire = time == null ? (DateTime?)null : timeNow.Add(time.Value); //返回UTC时间。            throw new Exception(expire.Value.AddHours(8).ToString("yyyy-MM-dd HH:mm:ss"));        }        [TestMethod]        public void TestSetTime()        {            var mutlti = StackExchange.Redis.ConnectionMultiplexer.Connect(connection);            var db = mutlti.GetDatabase(0);            db.KeyExpire("student2", DateTime.Now.AddHours(2));        }        [TestMethod]        public void TestNotifyOnExpire()        {            //URL:https://docs.azure.cn/zh-cn/redis-cache/cache-configure            //填一个"__keyevent@*__:expired*"试试            //如果不行的话，再改填成："Kxg"这试试            var tsk = Task.Factory.StartNew(() =>              {                  var mutlti = StackExchange.Redis.ConnectionMultiplexer.Connect(connection);                  var subscriber = mutlti.GetSubscriber();                  subscriber.Subscribe("__keyspace@0__:*", (channel, notificationType) =>                  {                      Debug.WriteLine(channel + "|" + notificationType);                  });                  while (true)                  {                      Thread.Sleep(1000);                  }              });            tsk.Wait();        }