线程基础

1、创建线程

使用最基础的Thread来创建线程

PrintNumbers同时运行在主线程和另一个线程中

 

 static void Main(string[] args)
        {
            Thread t= new Thread(PrintNumbers);
            t.Start();
            PrintNumbers();
        }

        static void PrintNumbers()
        {
            System.Console.WriteLine("Starting...");
            for (int i = 1; i < 10; i++)
            {
                System.Console.WriteLine("当前线程：" + Thread.CurrentThread.ManagedThreadId.ToString());
                System.Console.WriteLine(i);
            }
            System.Console.ReadLine();
        }

 

 2、线程等待(sleep)

 sleep，线程等待

 public void Main()
        {
            Thread t = new Thread(PrintNumberWidthDelay);
            t.Start();
            PrintNumbers();
        }

        private void PrintNumbers()
        {
            WriteLine("Starting...");
            for (int i = 1; i < 10; i++)
            {
                WriteLine(i);
            }
            ReadLine();
        }

        private void PrintNumberWidthDelay()
        {
            WriteLine("Starting...");
            for (int i = 0; i < 10; i++)
            {
                Thread.Sleep(TimeSpan.FromSeconds(2));
                WriteLine(i);
            }
        }

程序会先把主线程的执行完，然后再2秒执行另一个线程

3、线程等待，实现主线线程等待另一个线程执行完成，使用该线程的结果代码（join）

 public static void PringNumbersWithDelay()
        {
            WriteLine("starting...");
            for (int i = 0; i < 10; i++)
            {
                Sleep(TimeSpan.FromSeconds(2));
                WriteLine(i);
            }
        }

        public static void Print()
        {
            WriteLine("start...");
            Thread t = new Thread(PringNumbersWithDelay);
            t.Start();
            t.Join();//等待线程执行完毕
            WriteLine("Thread completed");
            ReadLine();
        }

 

4、线程终止（不推荐使用Abort来中止一个线程，可使用CancellationToken来取消线程的执行）

Thread t1 = new Thread(PringNumbersWithDelay);

  t1.Abort();//中止当前线程

5、检测线程状态（ThreadState）

 public static void PringNumbersWithDelay()
        {
            WriteLine("starting...");
            WriteLine(CurrentThread.ThreadState.ToString());
            for (int i = 0; i < 10; i++)
            {
                Sleep(TimeSpan.FromSeconds(2));
                WriteLine(i);
            }
        }

        static void DoNothing()
        {
            Sleep(TimeSpan.FromSeconds(2));
        }

        public static void Print()
        {
            WriteLine("Starting Program.....");
            Thread t1 = new Thread(PringNumbersWithDelay);
            Thread t2 = new Thread(DoNothing);
            WriteLine(t1.ThreadState.ToString());
            t2.Start();
            t1.Start();
            for (int i = 0; i < 30; i++)
            {
                WriteLine(t1.ThreadState.ToString());
            }
            Sleep(TimeSpan.FromSeconds(6));
            t1.Abort();
            WriteLine("A thread has been Aborted");
            WriteLine(t1.ThreadState.ToString());
            WriteLine(t2.ThreadState.ToString());
            ReadLine();
        }

 

转载于:https://www.cnblogs.com/zhaoxiaoyi/p/10505475.html