static void Main(string[] args)
    {
      var lockTimeout = 5000;//单位是毫秒
      var currentTime = DateTime.Now.ToUnixTime(true);
      if (SetNx("lockkey", currentTime+ lockTimeout,lockTimeout))
      {
        //TODO:一些业务逻辑代码
        //.....
        //.....
        //最后释放锁
        Remove("lockkey");
      }
      else
      {
        Console.WriteLine("没有获得分布式锁");
      }
      Console.ReadKey();
    }

    public static bool SetNx(string key,long time ,double expireMS)
    {
      if (redisClient.SetNx(key, time))
      {
        if (expireMS > 0)
          redisClient.Expire(key, TimeSpan.FromMilliseconds(expireMS));
        return true;
      }
      return false;
    }

    public static bool Remove(string key)
    {
      return redisClient.Del(key) > 0;
    }

public static void RedisLockV2()
    {
      var lockTimeout = 5000;//单位是毫秒
      var currentTime = DateTime.Now.ToUnixTime(true);

      if (SetNxV2("lockkey",DateTime.Now.ToUnixTime(true)+lockTimeout))
      {
        //设置过期时间
        redisClient.Expire("lockkey", TimeSpan.FromMilliseconds(5000));
        //TODO:一些业务逻辑代码
        
        Console.WriteLine("处理业务ing");
        Thread.Sleep(100000);

        Console.WriteLine("处理业务ed");
        //最后释放锁
        Remove("lockkey");
      }
      else
      {
        //未获取到锁，继续判断，判断时间戳看看是否可以重置并获取锁
        var lockValue = redisClient.Get("lockkey");
        var time = DateTime.Now.ToUnixTime(true);

        if (!string.IsNullOrEmpty(lockValue) && time> lockValue.ToInt64())
        {
          //再次用当前时间戳getset
          //返回固定key的旧值，旧值判断是否可以获取锁
          var getsetResult = redisClient.GetSet("lockkey", time);
          if (getsetResult == null || (getsetResult != null && getsetResult == lockValue))
          {
            Console.WriteLine("获取到Redis锁了");
            //真正获取到锁
            redisClient.Expire("lockkey", TimeSpan.FromMilliseconds(5000));
            //TODO:一些业务逻辑代码
            //.....
            //.....
            Console.WriteLine("处理业务");
            //最后释放锁
            Remove("lockkey");
          }
          else
          {
            Console.WriteLine("没有获取到锁");
          }

        }
        else
        {
          Console.WriteLine("没有获取到锁");
        }
      }
      
    }