禁用control+c关闭程序

我可能会晚一点，但这里有一个更好的方法，适用于所有平台：

Console.TreatControlCAsInput = true;

这里有一个相当完整的教程（带代码）。我做了一个快速测试，他们的例子确实有效（想象一下）。

这是他们的代码：

using System;
using System.Collections.Generic;
using System.IO;
using System.Xml;
using System.Text;
using System.Text.RegularExpressions;
using System.Runtime.InteropServices;
using System.Threading;
using System.Reflection;
namespace ConsoleApplication1
{
    class ControlChecker
    {
        #region GLOBAL VARS
        private static readonly Mutex mutex = new Mutex(true, Assembly.GetExecutingAssembly().GetName().CodeBase);
        private static bool _userRequestExit = false;
        private static bool _doIStop = false;
        static HandlerRoutine consoleHandler;
        #endregion
        [DllImport("Kernel32")]
        public static extern bool SetConsoleCtrlHandler(HandlerRoutine Handler, bool Add);
        // A delegate type to be used as the handler routine for SetConsoleCtrlHandler.
        public delegate bool HandlerRoutine(CtrlTypes CtrlType);
        // An enumerated type for the control messages sent to the handler routine.
        public enum CtrlTypes
        {
            CTRL_C_EVENT = 0,
            CTRL_BREAK_EVENT,
            CTRL_CLOSE_EVENT,
            CTRL_LOGOFF_EVENT = 5,
            CTRL_SHUTDOWN_EVENT
        }
        /// <summary>
        /// 
        /// </summary>
        /// <param name="ctrlType"></param>
        /// <returns></returns>
        private static bool ConsoleCtrlCheck(CtrlTypes ctrlType)
        {
            // Put your own handler here
            switch (ctrlType)
            {
                case CtrlTypes.CTRL_C_EVENT:
                    _userRequestExit = true;
                    Console.WriteLine("CTRL+C received, shutting down");
                    break;
                case CtrlTypes.CTRL_BREAK_EVENT:
                    _userRequestExit = true;
                    Console.WriteLine("CTRL+BREAK received, shutting down");
                    break;
                case CtrlTypes.CTRL_CLOSE_EVENT:
                    _userRequestExit = true;
                    Console.WriteLine("Program being closed, shutting down");
                    break;
                case CtrlTypes.CTRL_LOGOFF_EVENT:
                case CtrlTypes.CTRL_SHUTDOWN_EVENT:
                    _userRequestExit = true;
                    Console.WriteLine("User is logging off!, shutting down");
                    break;
            }
            return true;
        }
        /// <summary>
        /// Main entry point
        /// </summary>
        /// <param name="args"></param>
        /// <returns></returns>        
        static int Main(string[] args)
        {
            try
            {
                //make sure we only have one....
                if (!mutex.WaitOne(TimeSpan.Zero, true))
                {
                    Console.WriteLine("Another instance already running");
                    Thread.Sleep(5000);
                    return 1;
                }
                //save a reference so it does not get GC'd
                consoleHandler = new HandlerRoutine(ConsoleCtrlCheck);
                //set our handler here that will trap exit
                SetConsoleCtrlHandler(consoleHandler, true);
                DoMyTask();
                return 0;
            }
            catch (Exception x)
            {
                Console.WriteLine("Main Error [{0}]", x.Message);
                return -1;
            }
        }

        /// <summary>
        /// Run the export
        /// </summary>
        /// <param name="pAuthority"></param>
        /// <returns></returns>
        private static void DoMyTask()
        {
            //execcute until we have no more records to process
            while (!_doIStop)
            {
                //did user request exit?
                if (_userRequestExit)
                {
                    _doIStop = true;    //set flag to exit loop.  Other conditions could cause this too, which is why we use a seperate variable
                    Console.WriteLine("Shutting down, user requested exit");
                    break;
                }
                //do some other stuff here
                Console.WriteLine(String.Format("{0}, no exit requested yet...", DateTime.Now));
                //sleep 1 second
                Thread.Sleep(1000);    
            }
        }
    }
}

另一种方法是处理Console.CancelKeyPress事件：

Console.CancelKeyPress += Console_CancelKeyPress

这允许您保留快捷方式，但根据具体情况决定是否退出。

private static void HandleConsole_CancelKeyPress(ConsoleCancelEventArgs consoleCancelEventArgs)
{
    if (doNotExitYet) {
        consoleCancelEventArgs.Cancel = true;
    }
}