.net/c# memcached缓存获取所有缓存键的方法步骤

public Hashtable Stats(ArrayList servers, string mand)
        {

            // get SockIOPool instance
            SockIOPool pool = SockIOPool.GetInstance(_poolName);

            // return false if unable to get SockIO obj
            if (pool == null)
            {
                //if(log.IsErrorEnabled)
                //{
                //    log.Error(GetLocalizedString("unable to get socket pool"));
                /