CancellationTokenSource cancellationTokenSource = new CancellationTokenSource();
CancellationTokenSource cancellationTokenSource_1 = new CancellationTokenSource();
DateTime start = DateTime.Now;
Task.Run(() =>
{
Thread.Sleep(1000);
//cancellationTokenSource.Cancel();
cancellationTokenSource_1.Cancel();
});
//Task res = Task.Delay(5000, cancellationTokenSource.Token); // 这种方式会抛取消任务的异常
//res.Wait();
//Task.Wait(res);
Task.WhenAny(Task.Delay(5000, cancellationTokenSource_1.Token)).Wait();
Console.WriteLine((DateTime.Now - start).TotalMilliseconds);
输出:
1026.255
可见,并没有延时 5s。