using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Threading;

using System.Threading.Tasks;

namespace ConsoleApplication15

{

    class Program

    {

        static void Main(string[] args)

        {

            var cts = new CancellationTokenSource();

            var ct = cts.Token;

            Task task1 = new Task(() => { Run1(ct); }, ct);

            Task task2 = new Task(Run2);

            task1.Start();

            task2.Start();

            Task.Factory.StartNew(() =>

            {

                Thread.Sleep( * );

                cts.Cancel();

                try

                {

                    task1.Wait();

                    task2.Wait();

                }

                catch (AggregateException ex)

                {

                    foreach (var e in ex.InnerExceptions)

                    {

                        Console.WriteLine("\nhi,我是OperationCanceledException：{0}\n", e.Message);

                    }

                    Console.WriteLine("task1是不是被取消了？ {0}", task1.IsCanceled);

                    Console.WriteLine("task2是不是被取消了？ {0}", task2.IsCanceled);

                }

            });

        Console.ReadLine();

        }

    static void Run1(CancellationToken ct)

    {

        Console.WriteLine("我是任务1");

        while (true)

        {

            ct.ThrowIfCancellationRequested();

            Thread.Sleep();

            ct.ThrowIfCancellationRequested();

            Thread.Sleep();

            ct.ThrowIfCancellationRequested();

            Thread.Sleep();

            ct.ThrowIfCancellationRequested();

            Thread.Sleep();

            ct.ThrowIfCancellationRequested();

            Thread.Sleep();

        }

        ct.ThrowIfCancellationRequested();

        Console.WriteLine("我是任务1的第二部分信息");

    }

    static void Run2()

    {

        Console.WriteLine("我是任务2");

    }

}

}