理解Lock例子

对共享对象（N个线程可能会同时操作的对象）同步

class Program
    {
        static string[] temp = new string[3] { "0000", "-", "0000" };
        static void Main(string[] args)
        {
            Thread t1 = new Thread(Program.changeArray);
            t1.Start("1");
            Thread.Sleep(5);
            Thread t2 = new Thread(Program.changeArray);
            t2.Start("2");
            Console.Read();
        }
        public  static  void changeArray(object str)
        {
            
            //Console.Write("线程"+str.ToString()+"启动\r\n");
            lock (temp.SyncRoot)
            {
                Console.Write("线程" + str.ToString() + "lock\r\n");
                //Thread.Sleep(5000);
                temp[0] = str.ToString();
                
                for (int i = 0; i < temp.Length; i++)
       {
                    Console.Write(temp[i]);
       }
                Console.Write("\r\n");
            }
        }
        public static void changeArray2(object str)
        {
            Console.Write("线程2启动\r\n");
            lock (temp.SyncRoot)
            {
                temp[0] = str.ToString();
                
                
                for (int i = 0; i < temp.Length; i++)
                {
                    Console.Write(temp[i]);
                }
                Console.Write("\r\n");
            }
        }