相关疑难解决方法(0)

我正在玩async-await和取消以获得更多关于此事的理解.为此,我做了以下控制台应用程序:

using System;
using System.Threading;
using System.Threading.Tasks;

namespace AsyncTest
{
    class Program
    {
        private static CancellationTokenSource _cancellationTokenSource;
        private static CancellationToken _cancellationToken;

        static void Main(string[] args)
        {
            Console.CancelKeyPress += myHandler;

            _cancellationTokenSource = new CancellationTokenSource();
            _cancellationToken = _cancellationTokenSource.Token;

            var task = DoWorkAsync(_cancellationToken).ContinueWith(ContinueMethod);
            task.Wait();

            Console.ReadLine();
        }

        protected static void myHandler(object sender, ConsoleCancelEventArgs args)
        {
            if (_cancellationToken.CanBeCanceled)
            {
                _cancellationTokenSource.Cancel();
            }
            args.Cancel = true;
        }

        static void ContinueMethod(Task task)
        {
            if (task.IsCanceled)
            {
                Console.WriteLine("The task was canceled");
            }

            if (task.IsCompleted)
            {
                Console.WriteLine("The task completed successfully"); …