System.Threading.Timer

GLog.WLog("_thdTimer before");

                _thdTimer = new System.Threading.Timer(new TimerCallback(TimerProc));

                //2秒后开始执行计时器；每3秒执行一次

                _thdTimer.Change(,);

                GLog.WLog("_thdTimer after");

private void TimerProc(object state)

        {

            try

            {

                GLog.WLog("threading timer tick");

            }

            catch (Exception ex)

            { }

        }

2017-04-24 00:20:34.821 _thdTimer before
2017-04-24 00:20:34.821 _thdTimer after
2017-04-24 00:20:36.827 threading timer tick
2017-04-24 00:20:39.839 threading timer tick
2017-04-24 00:20:42.849 threading timer tick
2017-04-24 00:20:45.861 threading timer tick
2017-04-24 00:20:48.871 threading timer tick
2017-04-24 00:20:51.880 threading timer tick