C#多线程中的互斥锁Mutex

    class Program
    {
        private static Mutex mutex = new Mutex();
        static void Main(string[] args)
        {
            Thread[] thread = new Thread[3];
            for (int i = 0; i < 3; i++)
            {
                thread[i] = new Thread(ThreadMethod1);//方法引用
                thread[i].Name = "Thread-" + (i+1).ToString();
            }
            for (int i = 0; i < 3; i++)
            {
                thread[i].Start();
            }
            Console.ReadKey();
        }
        public static void ThreadMethod1(object val)
        {           
            mutex.WaitOne();　　　　//获取锁
            for (int i = 1; i <=5; i++)
            {
                Console.WriteLine("{0}循環了{1}次", Thread.CurrentThread.Name, i);
            }
            mutex.ReleaseMutex();  //释放锁
        }
    }

    class Program
    {
        private static Mutex mutex = new Mutex();
        private static int sum = 0;
        static void Main(string[] args)
        {
            Task<int> task = new Task<int>(ThreadFunction);
            task.Start();
            Console.WriteLine($"{DateTime.Now} task started!");
            Thread.Sleep(2000);//Main主線程

            Console.WriteLine($"{DateTime.Now} Get siginal in Main!");
            mutex.WaitOne();
            Console.WriteLine($"{DateTime.Now} Get siginal in main!");

            Console.WriteLine($"{DateTime.Now} Result is {task.Result}");
            Console.ReadKey();
        }
        private static int ThreadFunction()
        {
            Console.WriteLine($"{DateTime.Now} Get siginal in ThreadFunction!");
            mutex.WaitOne();　　//获取锁
            for (int i = 0; i <= 10; i++)
            {
                sum += i;
                Thread.Sleep(1000);
            }
            Console.WriteLine($"{DateTime.Now} Release mutex in ThreadFunction!");
            mutex.ReleaseMutex();　 //释放锁

            return sum;
        }
    }