用C#创建Windows Service

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Diagnostics;
using System.ServiceProcess;
using System.Text;

namespace TestService
{
    public partial class MyFirstService : ServiceBase
    {
        public MyFirstService()
        {
            InitializeComponent();
        }

        protected override void OnStart(string[] args)
        {
            // TODO: Add code here to start your service.
            eventLog1.WriteEntry("Service start");
        }

        protected override void OnStop()
        {
            // TODO: Add code here to perform any tear-down necessary to 
                       stop your service.
            eventLog1.WriteEntry("Service stop");
        }
    }
}