Task 暂停与继续

static void Main(string[] args)
        {
            CancellationTokenSource tokenSource = new CancellationTokenSource();
            CancellationToken token = tokenSource.Token;
            ManualResetEvent resetEvent = new ManualResetEvent(true);

            Task task = new Task(async () =>
            {
                //输出i
                int i = ;
                while (true)
                {
                    if (token.IsCancellationRequested)
                    {
                        return;
                    }
                    resetEvent.WaitOne();
                    //do something
                    Console.WriteLine(i++);
                    await Task.Delay();
                }

            }, token);
            task.Start();

            //2秒后暂停
            Thread.Sleep();
            resetEvent.Reset();
            Console.WriteLine("Reset");
            //2秒后启动
            Thread.Sleep();
            resetEvent.Set();
            Console.WriteLine("Set");
            //2秒后暂停
            Thread.Sleep();
            resetEvent.Reset();
            Console.WriteLine("Reset");

            Console.ReadKey();
        }

    }