本文整理匯總了C#中System.Threading.Tasks.TaskFactory.ContinueWhenAny方法的典型用法代碼示例。如果您正苦於以下問題：C# TaskFactory.ContinueWhenAny方法的具體用法？C# TaskFactory.ContinueWhenAny怎麽用？C# TaskFactory.ContinueWhenAny使用的例子？那麽, 這裏精選的方法代碼示例或許可以為您提供幫助。您也可以進一步了解該方法所在類System.Threading.Tasks.TaskFactory的用法示例。
在下文中一共展示了TaskFactory.ContinueWhenAny方法的1個代碼示例，這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚，您的評價將有助於係統推薦出更棒的C#代碼示例。
示例1: Main
//引入命名空間
using System;
using System.Threading;
using System.Threading.Tasks;
class ContinueWhenMultiDemo
{
// Demonstrated features:
// Task.Factory
// TaskFactory.ContinueWhenAll()
// TaskFactory.ContinueWhenAny()
// Task.Wait()
// Expected results:
// Three tasks are created in parallel.
// Each task for a different period of time prints a number and returns it.
// A ContinueWhenAny() task indicates the first of the three tasks to complete.
// A ContinueWhenAll() task sums up the results of the three tasks and prints out the total.
// Documentation:
// http://msdn.microsoft.com/library/system.threading.tasks.taskfactory_members(VS.100).aspx
static void Main()
{
// Schedule a list of tasks that return integer
Task<int>[] tasks = new Task<int>[]
{
Task<int>.Factory.StartNew(() =>
{
Thread.Sleep(500);
Console.WriteLine("Task={0}, Thread={1}, x=5", Task.CurrentId, Thread.CurrentThread.ManagedThreadId);
return 5;
}),
Task<int>.Factory.StartNew(() =>
{
Thread.Sleep(10);
Console.WriteLine("Task={0}, Thread={1}, x=3", Task.CurrentId, Thread.CurrentThread.ManagedThreadId);
return 3;
}),
Task<int>.Factory.StartNew(() =>
{
Thread.Sleep(200);
Console.WriteLine("Task={0}, Thread={1}, x=2", Task.CurrentId, Thread.CurrentThread.ManagedThreadId);
return 2;
})
};
// Schedule a continuation to indicate the result of the first task to complete
Task.Factory.ContinueWhenAny(tasks, winner =>
{
// You would expect winning result = 3 on multi-core systems, because you expect
// tasks[1] to finish first.
Console.WriteLine("Task={0}, Thread={1} (ContinueWhenAny): Winning result = {2}", Task.CurrentId, Thread.CurrentThread.ManagedThreadId, winner.Result);
});
// Schedule a continuation that sums up the results of all tasks, then wait on it.
// The list of antecendent tasks is passed as an argument by the runtime.
Task.Factory.ContinueWhenAll(tasks,
(antecendents) =>
{
int sum = 0;
foreach (Task<int> task in antecendents)
{
sum += task.Result;
}
Console.WriteLine("Task={0}, Thread={1}, (ContinueWhenAll): Total={2} (expected 10)", Task.CurrentId, Thread.CurrentThread.ManagedThreadId, sum);
})
.Wait();
}
}