C# Task 应用学习示例

private void button7_Click(object sender, EventArgs e)
        {
            Console.WriteLine("111111");
            Console.WriteLine("222222");
            Console.WriteLine("333333");
            Console.WriteLine("444444");
            Console.WriteLine("555555");
            Console.WriteLine("666666");
            Console.WriteLine("777777");
            Console.WriteLine("888888");
            Console.WriteLine("999999");

            //Task.Run(() => this.Coding("ouou", "ouou2"));
            //Task.Run(() => this.Coding("ouou3", "ouou4"));
            //Task.Run(() => this.Coding("ouou5", "ouou6"));
            //Task.Run(() => this.Coding("ouou7", "ouou8"));
            //Task.Run(() => this.Coding("ouou9", "ouou10"));
            //Task.Run(() => this.Coding("ouou11", "ouou12"));


            //等待所有线程完成
            List<Task> taskList = new List<Task>();
            taskList.Add(Task.Run(() => this.Coding("ouou", "ouou2")));
            taskList.Add(Task.Run(() => this.Coding("ouou3", "ouou4")));
            taskList.Add(Task.Run(() => this.Coding("ouou5", "ouou6")));
            taskList.Add(Task.Run(() => this.Coding("ouou7", "ouou8")));
            taskList.Add(Task.Run(() => this.Coding("ouou9", "ouou10")));
            taskList.Add(Task.Run(() => this.Coding("ouou11", "ouou12")));

            //Task.Run(() => //加上这行不卡界面,非推荐做法
            1.尽量不要线程套线程
            2.这里全部是子线程完成
            //{
            //    Task.WaitAny(taskList.ToArray());
            //    Console.WriteLine("do half~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~");

            //    //阻塞当前线程，直到全部任务结束，所以主线程阻塞了会卡界面
            //    Task.WaitAll(taskList.ToArray());

            //    Console.WriteLine("finish********************************");
            //});

            TaskFactory taskFactory = new TaskFactory();

            taskFactory.ContinueWhenAny(taskList.ToArray(), tArray =>
            {
                Console.WriteLine($"half 66666666666");
            });

            //等待全部任务完成后，启动一个新的task来完成后续动作
            taskFactory.ContinueWhenAll(taskList.ToArray(),tArray=>
            {
                Console.WriteLine($"finish xxxxxxxxxx");
            });
            //continue 的后续线程，可能是新线程，可能是刚完成的线程，还可能是同一个线程，不可能是主线程
           //线程是不可预测的，几个动作先后都有可能
        }

        private void Coding(string name,string project)
        {
            Console.WriteLine("Coding start {0} {1} {2}", name, Thread.CurrentThread.ManagedThreadId.ToString("00"), DateTime.Now.ToString("HHmmss:fff"));

            long lResult = 0;
            for (int i = 0; i < 6000; i++)
            {
                lResult += i;
                Thread.Sleep(1);
            }

            Console.WriteLine("Coding end {0} {1} {2} {3} ", name, Thread.CurrentThread.ManagedThreadId.ToString("00"), DateTime.Now.ToString("HHmmss:fff"), lResult);
        }