定时调度框架：Quartz.net

using Quartz;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace QuarztDemo1
{
    public class TestJob:IJob
    {
        public void Execute(IJobExecutionContext context)
        {
            Console.WriteLine(DateTime.Now.ToString());
        }
    }
}

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

namespace QuarztDemo1
{
    class Program
    {
        static void Main(string[] args)
        {
            //1.首先创建一个作业调度池
            ISchedulerFactory schedf = new StdSchedulerFactory();
            IScheduler sched = schedf.GetScheduler();
            //2.创建出来一个具体的作业
            IJobDetail job = JobBuilder.Create<TestJob>().Build();
            //3.创建并配置一个触发器

            #region（使用ISimpleTrigger触发器，每次3秒执行一次，无上限）
            //ISimpleTrigger trigger = (ISimpleTrigger)TriggerBuilder.Create().WithSimpleSchedule(x => x.WithIntervalInSeconds(3).WithRepeatCount(int.MaxValue)).Build();
            #endregion

            #region 每3秒执行一次 总共5次 ，开始执行时间设定在当前时间，结束时间我设定在2小时后，不过5次执行完没2小时候都不再执行。
            //-------NextGivenSecondDate：如果第一个参数为null则表名当前时间往后推迟2秒的时间点。
            //DateTimeOffset startTime = DateBuilder.NextGivenSecondDate(DateTime.Now.AddSeconds(5), 2);
            //DateTimeOffset endTime = DateBuilder.NextGivenSecondDate(DateTime.Now.AddHours(2), 3);
            //ISimpleTrigger trigger = (ISimpleTrigger)TriggerBuilder.Create().StartAt(startTime).EndAt(endTime)
            //                            .WithSimpleSchedule(x => x.WithIntervalInSeconds(3).WithRepeatCount(5))
            //                            .Build();
            #endregion

            #region （使用CronTrigger 触发器）在每小时的第10，20，25，26，33，54分钟，每分钟的第1，10，14秒执行一次
            DateTimeOffset startTime = DateBuilder.NextGivenSecondDate(DateTime.Now.AddSeconds(1), 2);
            DateTimeOffset endTime = DateBuilder.NextGivenSecondDate(DateTime.Now.AddYears(2), 3);
            ICronTrigger trigger = (ICronTrigger)TriggerBuilder.Create().StartAt(startTime).EndAt(endTime)
                                        .WithCronSchedule("1,10,59 10,20,21,26,33,54 * * * ? ")
                                        .Build();
            #endregion
           //4.加入作业调度池中
            sched.ScheduleJob(job, trigger);
            //5.开始运行
            sched.Start();
            Console.ReadKey();
        }
    }
}

<?xml version="1.0" encoding="utf-8" ?>
<configuration>
  <configSections>
    <section name="quartz" type="System.Configuration.NameValueSectionHandler, System, Version=1.0.5000.0,Culture=neutral, PublicKeyToken=b77a5c561934e089"/>
    <sectionGroup name="common">
      <section name="logging" type="Common.Logging.ConfigurationSectionHandler, Common.Logging"/>
    </sectionGroup>
  </configSections>
    <startup> 
        <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5" />
    </startup>
  
  <quartz>
    <add key="quartz.scheduler.instanceName" value="ExampleDefaultQuartzScheduler"/>
    <add key="quartz.threadPool.type" value="Quartz.Simpl.SimpleThreadPool, Quartz"/>
    <add key="quartz.threadPool.threadCount" value="10"/>
    <add key="quartz.threadPool.threadPriority" value="2"/>
    <add key="quartz.jobStore.misfireThreshold" value="60000"/>
    <add key="quartz.jobStore.type" value="Quartz.Simpl.RAMJobStore, Quartz"/>
    <!--******************************Plugin配置********************************************* -->
    <add key="quartz.plugin.xml.type" value="Quartz.Plugin.Xml.XMLSchedulingDataProcessorPlugin, Quartz" />
    <add key="quartz.plugin.xml.fileNames" value="~/quartz_jobs.xml"/> <!--指向指定的jobs.xml -->

  </quartz> 
</configuration>

<?xml version="1.0" encoding="UTF-8"?>

<job-scheduling-data xmlns="http://quartznet.sourceforge.net/JobSchedulingData"
        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
                 version="2.0">

  <processing-directives>
    <overwrite-existing-data>true</overwrite-existing-data>
  </processing-directives>
  <schedule> 
    <job>
      <name>jobName1</name>
      <group>jobGroup1</group>
      <description>jobDesciption1</description>
      <job-type>QuarztDemo1.TestJob, QuarztDemo1</job-type>
      <durable>true</durable>
      <recover>false</recover>
    </job>
   
    <trigger>
      <simple>　　<!--SimpleTrigger触发器--> 
        <name>simpleName</name>
        <group>simpleGroup</group>
        <description>SimpleTriggerDescription</description>
        <job-name>jobName1</job-name>
        <job-group>jobGroup1</job-group>
        <start-time>1982-06-28T18:15:00.0Z</start-time>
        <end-time>2020-05-04T18:13:51.0Z</end-time>
        <repeat-count>10</repeat-count>
        <repeat-interval>3000</repeat-interval>
      </simple>
    </trigger>

  </schedule>
  
</job-scheduling-data>

<trigger>
      <cron>
        <name>TestJobTrigger</name>
        <group>Test</group>
        <job-name>TestJob</job-name>
        <job-group>Test</job-group>
        <start-time>2015-01-22T00:00:00+08:00</start-time>
        <cron-expression>0/3 * * * * ?</cron-expression>
      </cron>
 </trigger>