关于调度使用.stop（）后再次执行.start()的问题

[sensentw]

public XiaoFeng.Threading.Job emailserver =new XiaoFeng.Threading.Job();

private void emailstart()
{

        emailserver.Async = true;
        emailserver.Name = "邮件服务";
        emailserver.TimerType = XiaoFeng.Threading.TimerType.Interval;
        emailserver.Period = 5000;
        emailserver.StartTime = DateTime.Now;
        emailserver.SuccessCallBack = job =>
        {
            /*到时间执行任务*/

            MailReceive();


        };
        emailserver.Start();
       

    }

private void button1_Click(object sender, EventArgs e)
{

        //timer1.Enabled = Enabled;
        if (emailserver.Status == XiaoFeng.Threading.JobStatus.NotQueued||emailzt==false)
        {
          
             emailserver.Start();//第二步，执行这里的时候就无法再次运行了
            //emailstart() ;使用此方法同样无法在启动了
        }
        else
        {
            emailserver.Stop();//第一步，这里执行会正常停止
           
        }

      }

[zhuovi]

作业调度代码如下，实现在启用，停止，再启用

var MyJob = new Job
{
    Name ="我的作业",
    Period=2000, TimerType= TimerType.Interval,
    SuccessCallBack = j =>
    {
        Console.WriteLine($"执行了作业{DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss.fffffff")}");
    },
    StopCallBack = j =>
    {
        Console.WriteLine($"停止了作业{DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss.fffffff")}");
    }
};

Task.Run(() =>
{
    var i = 0;
    while (true)
    {
        if (i % 2 == 0)
            MyJob.Start();
        else
            MyJob.Stop();


        Task.Delay(10000).Wait();
        i++;
    }
});

Console.ReadLine();

下图为当前代码运行日志