关于Task类

PRivate static void tt2()        {            Task task = null;            for (int i = 0; i < 10; i++)            {                 task = Task.Factory.StartNew(callback, i);            }            Thread.Sleep(10000000);        }        private static void callback(object i)        {            Console.WriteLine("任务"+i.ToString()+"开始-执行");            Thread.Sleep(10000);            Console.WriteLine("任务" + i.ToString() + "结束");        }

或者

private static void tt3()        {            for (int i = 0; i < 10; i++)            {                Task task = new Task(callback, i);                task.Start();            }            Thread.Sleep(10000000);        }        private static void callback(object i)        {            Console.WriteLine("任务"+i.ToString()+"开始-执行");            Thread.Sleep(10000);            Console.WriteLine("任务" + i.ToString() + "结束");        }

执行截图