class Program
    {
        static void Main(string[] args)
        {
            Thread threadA = new Thread(ThreadMethod); //執行的必須是無返回值的方法 
            threadA.Name = "A";
            Thread threadB = new Thread(ThreadMethod);
            threadB.Name = "B";
            threadA.Priority = ThreadPriority.Highest;
            threadB.Priority = ThreadPriority.BelowNormal;
            threadB.Start();
            threadA.Start();
            Thread.CurrentThread.Name = "C";//默認為Normal
            ThreadMethod(new object());
            Console.ReadKey();
        }
        public static void ThreadMethod(object parameter)
        {
            for (int i = 1; i <= 500; i++)
            {
                Console.Write(Thread.CurrentThread.Name);
            }
        }
    }