1、创建项目

项目类型控制台应用程序，.Net Framework框架版本 4.7.2

2、引入框架

NuGet\Install-Package Quartz -Version 3.8.0

3、创建Job

自定义Job实现接口IJob，在Execute方法实现定时逻辑，

using Quartz;
using System;
using System.Threading.Tasks;namespace QuartzConsole
{public class MyJob : IJob{public Task Execute(IJobExecutionContext context){return Console.Out.WriteLineAsync($"任务开始执行了：{DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss")}");}}
}

4、创建调度器实例

使用工厂类StdSchedulerFactory创建调度器实例，

StdSchedulerFactory factory = new StdSchedulerFactory();//创建工厂实例var scheduler = await factory.GetScheduler();//创建调度器await scheduler.Start();//启动调度器

5、创建Job实例

使用Job构建器创建任务实例，

IJobDetail job = JobBuilder.Create<MyJob>().WithIdentity("job1", "group1").Build();

6、创建触发器

使用触发器构建器创建触发器实例，触发器包含简单触发器和正则表达式触发器，比如重复执行多少次这种简单的逻辑，可以使用简单触发器，比如每天21点-23点，每隔2分钟的第5秒开始执行任务，则适合使用正则表达式触发器来构建。

简单触发器：

 #region 简单触发器，每隔5秒重复执行ITrigger trigger = TriggerBuilder.Create().WithIdentity("trigger", "group1").WithSimpleSchedule(x=>x.WithInterval(TimeSpan.FromSeconds(5)).RepeatForever()).Build();#endregion

正则表达式触发器：

#region 每天21点-23点，每隔2分钟的第5秒开始执行ITrigger trigger = TriggerBuilder.Create().WithIdentity("trigger", "group1").WithCronSchedule("5 0/2 21-23 * * ?").Build();#endregion

触发器正则表达式生成可以借助工具，参考链接：

Free Online Cron Expression Generator and Describer - FreeFormatter.com

7、将任务和触发器安排到调度器

await scheduler.ScheduleJob(job, trigger);

8、完整代码

using Quartz;
using Quartz.Impl;
using Quartz.Logging;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;namespace QuartzConsole
{class Program{async static Task Main(string[] args){StdSchedulerFactory factory = new StdSchedulerFactory();var scheduler = await factory.GetScheduler();await scheduler.Start();IJobDetail job = JobBuilder.Create<MyJob>().WithIdentity("job1", "group1").Build();//#region 每天21点-23点，每隔2分钟的第5秒开始执行//ITrigger trigger = TriggerBuilder.Create()//    .WithIdentity("trigger", "group1")//    .WithCronSchedule("5 0/2 21-23 * * ?")//    .Build();//#endregion//#region 每天21:33执行//ITrigger trigger = TriggerBuilder.Create()//    .WithIdentity("trigger", "group1")//    .WithSchedule(CronScheduleBuilder.DailyAtHourAndMinute(21,33))//    .Build();//#endregion#region 每周五21:36执行//ITrigger trigger = TriggerBuilder.Create()//    .WithIdentity("trigger", "group1")//    .WithSchedule(CronScheduleBuilder.WeeklyOnDayAndHourAndMinute(DayOfWeek.Friday,21,36))//    .Build();//ITrigger trigger = TriggerBuilder.Create()//    .WithIdentity("trigger", "group1")//    .WithCronSchedule("0 39 21 ? * FRI")//    .Build();#endregion#region 简单触发器，每隔5秒重复执行ITrigger trigger = TriggerBuilder.Create().WithIdentity("trigger", "group1").WithSimpleSchedule(x=>x.WithInterval(TimeSpan.FromSeconds(5)).RepeatForever()).Build();#endregionawait scheduler.ScheduleJob(job, trigger);Console.WriteLine("Press any key to close the application");Console.ReadKey();}}
}

官方学习文档：Cron Triggers | Quartz.NET