C# Thread IsBackground 前后台线程

Thread 区别前后台线程属性IsBackground

1、  创建一个线程默认是前台线程，即IsBackground=true

2、  主线程的结束会关联前台线程，前台线程会阻止主进程的结束，需等待前台线程完成。

3、  主进程结束时后台线程也会结束，即使没有执行完成也会被中断。

static void Main(string[] args)        {            BackgroundTest shortTest = new BackgroundTest(50);            Thread foregroundThread =                new Thread(new ThreadStart(shortTest.RunLoop));            foregroundThread.Name = "ForegroundThread";            BackgroundTest longTest = new BackgroundTest(100);            Thread backgroundThread =                new Thread(new ThreadStart(longTest.RunLoop));            backgroundThread.Name = "BackgroundThread";            backgroundThread.IsBackground = true;            foregroundThread.Start();            backgroundThread.Start();

Task.Factory.StartNew(() =>            {                Thread.CurrentThread.Name = "Task Thread";                Thread.CurrentThread.IsBackground = false; //设置为前台线程                new BackgroundTest(50).RunLoop();            });

//回车结束主线程，如果有前台线程在运行是无法结束的，（后台线程就会被终止，不会执行完成）            Console.ReadLine();        }        class BackgroundTest        {            int maxIterations;            public BackgroundTest(int maxIterations)            {                this.maxIterations = maxIterations;            }            public void RunLoop()            {                String threadName = Thread.CurrentThread.Name;                for (int i = 0; i < maxIterations; i++)                {                    Console.WriteLine("{0} count: {1}",                        threadName, i.ToString());                    Thread.Sleep(250);                }                Console.WriteLine("{0} finished counting.", threadName);            }        }