所以我有这个代码:
//CancelationToken
CancellationTokenSource src = new CancellationTokenSource();
CancellationToken ct = src.Token;
ct.Register(() => Console.WriteLine("Abbruch des Tasks"));
//Task
Task t = new Task(() =>
{
System.Threading.Thread.Sleep(1000);
if (ct.IsCancellationRequested)
{
try
{
//Throw
ct.ThrowIfCancellationRequested();
}
catch (OperationCanceledException)
{
Console.WriteLine(
"ThrowIfCancellationRequested() liefert eben eine Exception");
}
}
}, ct);
//Run Task and Cancel
t.Start();
src.CancelAfter(350);
t.Wait();
// Get Information
Console.WriteLine("Canceled: {0} . Finished: {1} . Error: {2}",
t.IsCanceled, t.IsCompleted, t.IsFaulted);
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所以在这种情况下我取消了我的任务,但我的输出最后是:"取消:假.完成:真.错误:错误"
在我看来,它应该是"取消:真实.完成:假".为什么我得到这个结果?因为我试图抓住异常?
我试过没有try-catch块,但是由于OperationCanceledException,我的程序停止了.有人能帮助我吗?