C#控制台关闭事件

using System;
using System.Runtime.InteropServices;
using System.Threading;

namespace ConsoleApp1
{
    public delegate bool ControlCtrlDelegate(int ctrlType);

    public class Program
    {
        private static readonly ControlCtrlDelegate NewDelegate = HandlerRoutine;

        [DllImport("kernel32.dll")]
        private static extern bool SetConsoleCtrlHandler(ControlCtrlDelegate handlerRoutine, bool add);

        public static bool HandlerRoutine(int ctrlType)
        {
            switch (ctrlType)
            {
                case 0:
                    Console.WriteLine("0工具被强制关闭"); //Ctrl+C关闭  
                    break;
                case 2:
                    Console.WriteLine("2工具被强制关闭"); //按控制台关闭按钮关闭  
                    break;
            }
            return false;
        }

        public static void Main(string[] args)
        {
            var bRet = SetConsoleCtrlHandler(NewDelegate, true);

            for (var i = 0; i < 10000; i++)
            {
                Console.Clear();
                Console.WriteLine(i);
                Console.WriteLine(i + 1);
                Console.WriteLine(i + 2);
                Console.WriteLine(i + 3);
                Console.WriteLine(i + 4);
                Console.WriteLine(i + 5);
                Console.WriteLine(i + 6);
                Thread.Sleep(100);
            }
        }
    }
}