有什么方法可以使用ContinueWith任务启动任务吗? [英] Is there any way to start task using ContinueWith task?

问题描述

我的代码:

var r = from x in new Task<int>(() => 1)
        from y in new Task<int>(() => x + 1) 
        select y;
r.ContinueWith(x => Console.WriteLine(x.Result)).Start();   

或

new Task<int>(() => 1)
    .ContinueWith(x => x.Result + 1)
    .ContinueWith(x => Console.WriteLine(x.Result))
    .Start();

例外:

可能不会在继续任务上调用开始.

Start may not be called on a continuation task.

所以我需要开始第一个任务.有什么方法可以调用上一个任务的Start方法来运行所有任务?

So I need to start the first task. Is there any way to call last task Start method to run all tasks?

推荐答案

任何不使用Task.Factory.StartNew

Any reason not to use Task.Factory.StartNew^{msdn, ms docs} for the first task? Yes, it's inconsistent - but it's fundamentally a different kind of task, in terms of being started explicitly rather than just as a continuation.

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