C#多线程学习笔记(一)

a.在C#中要使用线程要引用System.Threading;

using System.Threading;

b.在C#可以对程进行命名

Thread _thrd = new Thread(new ThreadStart());
_thrd.Name = "thisthrd.name"

c.可以通过Thread的static属性获取当前线程

Thread.CurrentThread

d.操作线程的几个重要的方法

Start():启动线程
Sleep(int):静态方法，暂停当前线程指定的毫秒数
Abort():通常使用该方法来终止一个线程
Suspend()：该方法并不终止未完成的线程，它仅仅挂起线程，以后还可恢复。
Resume():恢复被Suspend()方法挂起的线程的执行

e. sample

using System;
using System.Collections.Generic;
using System.Text;
using System.Threading;

namespace ThreadOperation
{
    public class Alpha
    {
        Int32 i;
        public Alpha()
        {
            i = 0;
        }
        public void Beta()
        {
            while (true)
            {
                Console.WriteLine(i.ToString() + ":Alpha.Beta is running out of its own thread");
                i++;
            }
        }
    }

    class Program
    {
        static int Main(string[] args)
        {
            Thread.CurrentThread.Name = "System Thread";
            Console.WriteLine("Thread Start/Stop/Join sample");
            Alpha oAlpha = new Alpha();
            Thread oThread = new Thread(new ThreadStart(oAlpha.Beta));
            oThread.Start();
            oThread.Name = "Alpha Thread";
            while (!oThread.IsAlive) Console.WriteLine("has dead");
            Console.WriteLine("Current Thread:" + Thread.CurrentThread.Name);
            Thread.Sleep(1);
            Console.WriteLine("oThread.ThreadState:"+oThread.ThreadState);
            oThread.Abort();
            Console.WriteLine("oThread.ThreadState:" + oThread.ThreadState);
            oThread.Join();
            Console.WriteLine("oThread.ThreadState:" + oThread.ThreadState);
            Console.WriteLine();
            Console.WriteLine("Alpha.Beta has finished");
            try
            {
                Console.WriteLine("Try to restart the Alpha.Beta thread");
                oThread.Start();
            }
            catch (ThreadStateException)
            {
                Console.WriteLine("oThread.ThreadState:" + oThread.ThreadState);
                Console.Write("ThreadStateException trying to restart Alpha.Beta. ");
                Console.WriteLine("Expected since aborted threads cannot be restarted.");
                Console.ReadLine();
            }
            return 0;

            
        }
    }
}