c# - 我如何从WhenAll(任务数组)中获取结果

Question

我有以下代码。

var tasks = new[]
    {
        Task.Factory.StartNew(() => GetSomething1()),
        Task.Factory.StartNew(() => GetSomething2()),
        Task.Factory.StartNew(() => GetSomething3())
    };

var things = Task.WhenAll(tasks);

如何分别从所有三个任务中获得结果并打印？

Answer 1

为了分别获得结果，您可以通过多种方式来执行以下操作:

var task1  = GetSomething1();
var task2  = GetSomething2();
var task3  = GetSomething3();

// your method will continue when everything's completed, but you won't tie up a thread to just hang around until that time.
await Task.WhenAll(task1, task2, task3);

var result1 = await task1;
var result2 = await task2;
var result3 = await task3;