Scheduler scheduler = new FreeSchedulerBuilder()
            .OnExecuting(task =>
            {                
               
               
                Console.WriteLine( $"{DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss")}数据库清理定时任务完成");

            }).UseTimeZone(TimeSpan.FromHours(8))
            .Build();
          
            scheduler.AddTaskRunOnDay("init", "body1", round: -1, "02:00:00");