当主程序启动时，首先创建ManualResetEventSlim 类的一个实例。然后启动三个线程，等待事件信号通知它们继续执行。

 

1 /// 
 2         /// 创建 ManualResetEventSlim 实例 3         /// 
 4         private static ManualResetEventSlim _mainEvent = new ManualResetEventSlim(false); 5  6         /// 
 7         /// 接收信号继续执行 8         /// 
 9         /// 线程名10         /// 时间（秒）11         public void TravelThroughGates(string threadName, int secods)12         {13             // threadName  falls to sleep14             System.Threading.Thread.Sleep(TimeSpan.FromSeconds(secods));15 16             // threadName waits for the gates to open17             _mainEvent.Wait();      // 阻止当前线程，直到接收到信号18 19             // threadName enters the gates20             Console.WriteLine($"{threadName} 继续执行");21             22         }

 

线程只有在ManualResetEventSlim 对象发出信号才能继续执行，不然只有继续等待，直到接接收到信号。

 

1 /// 
 2         /// 输出 3         /// 
 4         public void Print() 5         { 6             var t1 = new System.Threading.Thread(() => TravelThroughGates("Thread 1", 5)); 7             var t2 = new System.Threading.Thread(() => TravelThroughGates("Thread 2", 6)); 8             var t3 = new System.Threading.Thread(() => TravelThroughGates("Thread 3", 12)); 9 10             t1.Start();11             t2.Start();12             t3.Start();13             System.Threading.Thread.Sleep(TimeSpan.FromSeconds(6));14 15             // The gates are now open16             _mainEvent.Set();   // 发射信号17            18             System.Threading.Thread.Sleep(TimeSpan.FromSeconds(2));19             _mainEvent.Reset();     // 关闭信号20 21             // The gates have been closed22             System.Threading.Thread.Sleep(TimeSpan.FromSeconds(10));23 24             // The gates are now open for the second time25             _mainEvent.Set();   // 发射信号26 27             System.Threading.Thread.Sleep(TimeSpan.FromSeconds(2));28 29             //The gates have been closed30             _mainEvent.Reset();     // 关闭信号31         }