關于線程的參數（2.0）、“返回值”、及線程的中止

1.線程的參數：
有時候會想向輔助線程傳遞些信息，這里需要用到ParameterizedThreadStart 委托

示例：

        PRivate void btRunThread_Click(object sender, EventArgs e)

        {

            Thread t = new Thread(new ParameterizedThreadStart(this.ThreadRun));

            t.Start(100);

        }

        private void ThreadRun(object o)

        {

            this.lbCompleted.Invoke((MethodInvoker)delegate { this.lbCompleted.Text = System.Convert.ToString(o); });

        }

2.通過代理可以大致實現類似功能，示例：

    class Program

    {

        static void Main(string[] args)

        {

            ThreadClass tc = new ThreadClass(new MyDlg(DlgMethod));

            Thread thread = new Thread(new ThreadStart(tc.ThreadRun));

            Console.WriteLine("second thread start");

            thread.Start();

            thread.Join();

            Console.WriteLine("second thread completed");

            Console.Read();       

        }

        private static void DlgMethod(int i)

        {

            Console.WriteLine("Second Thread Result:{0}", i);

        }

    }

    public delegate void MyDlg(int i);

    class ThreadClass

    {

        private MyDlg myDlg;

        public ThreadClass(MyDlg pDlg)

        {

            this.myDlg = pDlg;

        }

        public void ThreadRun()

        {

            int total = 0;

            for (int i = 0; i < 100; i++)

            {

                total += i;

            }

            if (myDlg != null)

            {

                myDlg(total);

            }

        }

    }

3.線程的中止：

（1）.join方法

MSDN注釋：在繼續執行標準的 COM 和 SendMessage 消息泵處理期間，阻止調用線程，直到某個線程終止為止。

看得一頭霧，自己試了一下，似乎線程在調用join方法之后，該線程搶占了所有的cpu時間，直到線程的任務完成。不知道是這是這樣？

（2）.abort方法

立即中止線程

（3）.定義標識量

示例：

    class Program

    {

        private static bool stop;

        static void Main(string[] args)

        {

            stop = false;

            Thread t = new Thread(new ThreadStart(ThreadRun));

            t.Start();

            Thread.Sleep(100);

            stop = true;

            Console.Read();

        }

        static void ThreadRun()

        {

            while (!stop)

            {

                Console.WriteLine("Do Some Work...");

            }

        }

    }

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