private  Object thisLock = new Object();//創(chuàng)建對(duì)象鎖
  或者
  private static readonly object thisLock = new object();
    lock (thisLock)
   {   
         // Critical code section
    }

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading;
using System.Threading.Tasks;

namespace Lock測(cè)試
{
    class Program
    {
        static void Main(string[] args)
        {
            C1 c1 = new C1();

            //在t1線程中調(diào)用LockMe，并將deadlock設(shè)為true（將出現(xiàn)死鎖）
            Thread t1 = new Thread(c1.LockMe);
            t1.Start(true);
            Thread.Sleep(100);

            //在主線程中l(wèi)ock c1
            lock (c1)
            {
                //調(diào)用沒(méi)有被lock的方法
                c1.DoNotLockMe();
                //調(diào)用被lock的方法，并試圖將deadlock解除
                c1.LockMe(false);
            }
            Console.Read();
        }

    }
    class C1
    {
        private bool deadlocked = true;

        //這個(gè)方法用到了lock，我們希望lock的代碼在同一時(shí)刻只能由一個(gè)線程訪問(wèn)
        public void LockMe(object o)
        {
            lock (this)
            {
                while (deadlocked)
                {
                    deadlocked = (bool)o;
                    Console.WriteLine("Foo: I am locked :("+o);
                    Thread.Sleep(500);
                }
            }
        }

        //所有線程都可以同時(shí)訪問(wèn)的方法
        public void DoNotLockMe()
        {
            Console.WriteLine("I am not locked :)");
        }
    }
}

       private bool deadlocked = true;
        private object locker = new object();

        //這個(gè)方法用到了lock，我們希望lock的代碼在同一時(shí)刻只能由一個(gè)線程訪問(wèn)
        public void LockMe(object o)
        {
            lock (locker)
            {
                while (deadlocked)
                {
                    deadlocked = (bool)o;
                    Console.WriteLine("Foo: I am locked :("+o);
                    Thread.Sleep(500);
                }
            }
        }

        //所有線程都可以同時(shí)訪問(wèn)的方法
        public void DoNotLockMe()
        {
            Console.WriteLine("I am not locked :)");
        }
    }
}