【线程】线程的前后台的运行区别

class Program
    {
        static void Main(string[] args)
        {
            TestBackGround tbg=new TestBackGround(10);          
            Thread th = new Thread(new ThreadStart(tbg.reCount));

            TestBackGround rtbg = new TestBackGround(5);          // 如果此处的5为50
            Thread rth = new Thread(new ThreadStart(rtbg.reCount));
            rth.IsBackground = true;

            rth.Start();
            th.Start();

        }
    }

    class TestBackGround
    {
        int count;
        public TestBackGround(int _count)
        {
            this.count = _count;
        }

        public void reCount()
        {
            string threadName=Thread.CurrentThread.Name;
            for (int i = 0; i < count; i++)
            {
                Console.WriteLine( i.ToString());
                Thread.Sleep(1000);
            }
            Console.WriteLine("Finish Counting " + threadName);
        }
    }

///////////////////////////////////

例子 输出：

当标示处为5时，程序会一直运行下去。即使后台的程序运行结束，前台仍然会继续运行下去，然后Application关闭

。。。。。50时，程序会在前台程序结束后 ， 关闭这个Application， 但是后台程序并未完成运行。