class Program    {        static void Main(string[] args)        {            Thread t = new Thread(LockObject.MonitorIncrement);            Thread t1=new Thread(new ThreadStart(LockObject.LockIncrement));            t.Start();                       t1.Start();                  }    }    public class LockObject    {        /// <summary>        /// 多线程共享数据        /// </summary>         private static int counter = 0;        /// <summary>        /// 同步对象,推荐这种写法        /// 应避免锁定 public 类型，否则实例将超出代码的控制范围        /// 具体如：lock (this)、lock (typeof (MyType)) 和 lock ("myLock")        /// </summary>         private readonly static object synisynchronize = new object();        public static void MonitorIncrement()        {            ///Monitor.Enter 与 Monitor.Exit 相当于Lock                        Monitor.Enter(synisynchronize);            Thread.Sleep(1000);            counter++;            Console.WriteLine("MonitorIncrement counter={0}", counter);            Monitor.Exit(synisynchronize);        }        public static void LockIncrement()        {            ///lock在开始时调用 Monitor.Enter             ///在结束时调用 Monitor.Exit 。            lock (synisynchronize)            {                             counter++;                Console.WriteLine("LockIncrement counter={0}" ,counter);            }        }    }