dotnet add package Sundial 

 public class MyJob : IJob {  private readonly ILogger<MyJob> _logger;  public MyJob(ILogger<MyJob> logger)  {  _logger = logger;  }  public Task ExecuteAsync(JobExecutingContext context, CancellationToken stoppingToken)  {  _logger.LogInformation(context.ToString());  return Task.CompletedTask;  } } 

 services.AddSchedule(options => {  options.AddJob<MyJob>(Triggers.PeriodSeconds(5)); // 5s 执行一次 }); 

 info: 2022-12-05 19:32:56.3835407 +08:00 星期一 L System.Logging.ScheduleService[0] #1  Schedule hosted service is running. info: 2022-12-05 19:32:56.3913451 +08:00 星期一 L System.Logging.ScheduleService[0] #1  Schedule hosted service is preloading... info: 2022-12-05 19:32:56.4322887 +08:00 星期一 L System.Logging.ScheduleService[0] #1  The <job1_trigger1> trigger for scheduler of <job1> successfully appended to the schedule. info: 2022-12-05 19:32:56.4347959 +08:00 星期一 L System.Logging.ScheduleService[0] #1  The scheduler of <job1> successfully appended to the schedule. warn: 2022-12-05 19:32:56.4504555 +08:00 星期一 L System.Logging.ScheduleService[0] #1  Schedule hosted service preload completed, and a total of <1> schedulers are appended. info: 2022-12-05 19:33:01.5100177 +08:00 星期一 L MyJob[0] #13 + <job1> [C] <job1 job1_trigger1> 5s 1ts 2022-12-05 19:33:01.395 -> 2022-12-05 19:33:06.428 info: 2022-12-05 19:33:06.4676792 +08:00 星期一 L MyJob[0] #13 + <job1> [C] <job1 job1_trigger1> 5s 2ts 2022-12-05 19:33:06.428 -> 2022-12-05 19:33:11.435 info: 2022-12-05 19:33:11.4460946 +08:00 星期一 L MyJob[0] #16 + <job1> [C] <job1 job1_trigger1> 5s 3ts 2022-12-05 19:33:11.435 -> 2022-12-05 19:33:16.412 

 # 持续运行格式 <作业Id> 作业描述 [并行C/串行S] <作业Id 触发器Id> 触发器字符串 触发器描述 触发次数ts 触发时间 -> 下一次触发时间 # 触发停止格式 <作业Id> 作业描述 [并行C/串行S] <作业Id 触发器Id> 触发器字符串 触发器描述 触发次数ts 触发时间 [触发器终止状态]