namespace mynamespace {    public delegate void methodDelegate(object o);    public class TimerHandler    {        private static methodDelegate _method;        private static methodDelegate method        {            get { return _method; }        }        private static Timer _timer = null;        private static Timer timer        {            get            {                if (_timer != null)                {                    return _timer;                }                else                {                    return new Timer(new TimerCallback(method), null, Timeout.Infinite, Timeout.Infinite);                }            }        }        /// 
        /// 启动计时器        /// 
        public void Start(methodDelegate method)        {            _method = method;            int ScanInterval = 6 * 1000;//ms,6s默认时间            if (System.Configuration.ConfigurationSettings.AppSettings["ScanInterval"] != null)            {                ScanInterval = Convert.ToInt32(System.Configuration.ConfigurationSettings.AppSettings["ScanInterval"]) * 1000;            }            timer.Change(0, ScanInterval);        }        /// 
        /// 停止计时器        /// 
        public void Stop()        {            timer.Change(Timeout.Infinite, Timeout.Infinite);        }    }}

 使用：

TimerHandler t = new TimerHandler();        t.Start(methodName);