public class FirstJob : JobBase, ITransientDependency

    {

        public override Task Execute(IJobExecutionContext context)

        {

            Task t = Task.Run(delegate { Console.WriteLine(DateTime.Now); });

            return t;

        }

    }

 public class JobService

    {

        private readonly IQuartzScheduleJobManager _jobManager;

        public JobService(IQuartzScheduleJobManager i)

        {

            _jobManager = i;

        }

        public async Task ScheduleJob()

        {

            await _jobManager.ScheduleAsync<FirstJob>(

          job =>

          {

              job.WithIdentity("MyLogJobIdentity", "MyGroup")

                  .WithDescription("A job to simply write logs.");

          },

          trigger =>

          {

              trigger.StartNow()

                  .WithSimpleSchedule(schedule =>

                  {

                      schedule.RepeatForever()

                          .WithIntervalInSeconds(5)

                          .Build();

                  });

          });

           // return ;

        }

    }

   public  class JobManager : IApplicationService

    {

        IQuartzScheduleJobManager m;

        public JobManager(IQuartzScheduleJobManager d)

        {

            m = d;

        }

        public string GetString() {

            return "成功";

        }

        public async Task GetStartJob()

        {

            Jobs.JobService j = new Jobs.JobService(m);

            await j.ScheduleJob();

        }

    }