关于线程的参数（2.0）、“返回值”、及线程的中止

1.线程的参数：
有时候会想向辅助线程传递些信息，这里需要用到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.通过代理可以大致实现类似功能，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.线程的中止：

（1）.join方法

MSDN注释：在继续执行标准的 COM 和 SendMessage 消息泵处理期间，阻止调用线程，直到某个线程终止为止。

看得一头雾，自己试了一下，似乎线程在调用join方法之后，该线程抢占了所有的cpu时间，直到线程的任务完成。不知道是这是这样？

（2）.abort方法

立即中止线程

（3）.定义标识量

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...");
            }
        }
    }