[System.Security.SecuritySafeCritical]  // auto-generated
        [SuppressMessage("Microsoft.Concurrency", "CA8001", Justification = "Reviewed for thread-safety.")]
        private bool WaitOne(long timeout, bool exitContext)
        {
            return InternalWaitOne(safeWaitHandle, timeout, hasThreadAffinity, exitContext);
        }
        [System.Security.SecurityCritical] 
        internal static bool InternalWaitOne(SafeHandle waitableSafeHandle, long millisecondsTimeout, bool hasThreadAffinity, bool exitContext)
        {
            Contract.EndContractBlock();
            int ret = WaitOneNative(waitableSafeHandle, (uint)millisecondsTimeout, hasThreadAffinity, exitContext);
           
            if (ret == WAIT_ABANDONED)
            {
                ThrowAbandonedMutexException();
            }
            return (ret != WaitTimeout);
        }
        //調(diào)用win32 waitforsingleobjectEx
        [System.Security.SecurityCritical]
        [ResourceExposure(ResourceScope.None)]
        [MethodImplAttribute(MethodImplOptions.InternalCall)]
        private static extern int WaitOneNative(SafeHandle waitableSafeHandle, uint millisecondsTimeout, bool hasThreadAffinity, bool exitContext);
 

            }).Start();
            new Thread(() =>
            {
                Thread.Sleep(2000);
                Console.WriteLine("發(fā)信號");
                waitHandler.Set();    //向內(nèi)核對象發(fā)送信號。設(shè)置事件對象為非終止狀態(tài)、false，解除阻塞。 

            }).Start();
            //waitHandler.Close(); //釋放句柄資源。
            //waitHandler.Reset();  //手動設(shè)置事件為非終止狀態(tài)、false，線程阻止。
            Console.ReadLine();
        }

                manualWaitHandler.Reset();  //手動 設(shè)置事件對象狀態(tài)為非終止狀態(tài)，false。
                manualWaitHandler.WaitOne();  //這里直接阻塞等待無效，因為事件對象還是true，必須手動調(diào)reset。
                Console.WriteLine("第二次接收到信號，開始處理。");

            }).Start();
            new Thread(() =>
            {
                Thread.Sleep(2000);
                Console.WriteLine("發(fā)信號");
                manualWaitHandler.Set();    //向事件對象發(fā)送ok信號。。

                Thread.Sleep(2000);
                Console.WriteLine("第二次發(fā)信號");
                manualWaitHandler.Set();
            }).Start();
            Console.ReadLine();