public class JobWorker : ISpareTimeWorker
{
    /// <summary>
    /// 每分钟执行
    /// </summary>
    /// <param name="timer"></param>
    /// <param name="count"></param>
    [SpareTime("* * * * *", "jobName", StartNow = true)]
    public void DoSomething(SpareTimer timer, long count)
    {
        Console.WriteLine(DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss"));
        Console.WriteLine($"一共执行了：{count} 次");
    }

    /// <summary>
    /// 每分钟执行（支持异步）
    /// </summary>
    /// <param name="timer"></param>
    /// <param name="count"></param>
    [SpareTime("* * * * *", "jobName", StartNow = true)]
    public async Task DoSomethingAsync(SpareTimer timer, long count)
    {
        Console.WriteLine(DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss"));
        Console.WriteLine($"一共执行了：{count} 次");
        await Task.Completed;
    }
}

SpareTime.DoOnce(1000,(timer,count)=> {});