阻止控制台程序退出的一个方法，取自 surging的服务端。

class Program    {        //用来阻止程序退出        private static readonly ManualResetEvent _shutdownBlock = new ManualResetEvent(false);        static void Main(string[] args)        {            Console.WriteLine("Hello World!"); 　　　　　　　//启动其他线程            //Console.Read();            Console.CancelKeyPress += Console_CancelKeyPress;            AppDomain.CurrentDomain.ProcessExit += (sender, eventArgs) =>            {
    　　　　　　　　　　//等待退出信号触发                _shutdownBlock.WaitOne();            };        }        //Ctrl+C 退出程序        private static void Console_CancelKeyPress(object sender, ConsoleCancelEventArgs e)        {            e.Cancel = true;            _shutdownBlock.Set();        }    }

 另：asp.net Core也是采用此方法

 参考：

https://github.com/dotnetcore/surging

surging/src/Surging.Core/Surging.Core.ServiceHosting/Internal/Implementation/ConsoleLifetime.cs

https://github.com/aspnet/AspNetCore

AspNetCore/src/Hosting/Hosting/src/Internal/WebHostLifetime.cs