Quartz.net

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Quartz;
using Quartz.Impl;

namespace QuartzDemo1
{

    public class DumbJob : IJob
    {
        public DumbJob()
        {
        }

        public void Execute(JobExecutionContext context)
        {
            Console.WriteLine("DumbJob is executing."+DateTime.Now.ToUniversalTime() );
        }
    }


    class Program
    {
        static void Main(string[] args)
        {
            // construct a scheduler factory
            ISchedulerFactory schedFact = new StdSchedulerFactory();

            // get a scheduler
            IScheduler sched = schedFact.GetScheduler();
            sched.Start();

            // construct job info
            JobDetail jobDetail = new JobDetail("myJob", null, typeof(DumbJob));


            //// fire every hour
            ////Trigger trigger = TriggerUtils.MakeHourlyTrigger();
            //Trigger trigger = TriggerUtils.MakeSecondlyTrigger();
            //// start on the next even hour
            ////trigger.StartTimeUtc = TriggerUtils.GetEvenHourDate(DateTime.UtcNow);
            //trigger.StartTimeUtc = TriggerUtils.GetEvenMinuteDate(DateTime.UtcNow);
            //trigger.Name = "myTrigger";

            SimpleTrigger trigger = new SimpleTrigger("myTrigger",
                                          null,
                                          DateTime.UtcNow.AddSeconds(4),
                                          null,
                                          2,
                                          TimeSpan.FromSeconds(3)); 

            sched.ScheduleJob(jobDetail, trigger);

            Console.WriteLine("press any key to shut down");
            Console.ReadKey(true);
            Console.WriteLine("shutdown ing...");
            sched.Shutdown();
        }
    }
}

来源：

http://quartznet.sourceforge.net/index.html