时钟操作类

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);
                }
            }
        }

        /// <summary>
        /// 启动计时器
        /// </summary>
        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);
        }

        /// <summary>
        /// 停止计时器
        /// </summary>
        public void Stop()
        {
            timer.Change(Timeout.Infinite, Timeout.Infinite);
        }


    }
}

 使用：

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