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");             }         }