windows 服务问题启动后自动停止

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

namespace WindowsServiceTime
{
    public partial class Service1 : ServiceBase
    {
        public Service1()
        {
            InitializeComponent();
            tim = new Timer();
            tim.Interval = 1000;
            tim.Elapsed += new ElapsedEventHandler(tim_Elapsed);

        }
        bool state1 = true;
        bool state2 = true;
        void tim_Elapsed(object sender, ElapsedEventArgs e)
        {
            int hour = DateTime.Now.Hour;
            if ((hour>= 0) && (hour < 12) &&this.state1)
            {
                this.print(DateTime.Now.ToString()+"：上午好！");
                this.state1 = false;
                this.state2 = true;
            }
            else if ((hour>= 12) && (hour < 18) && this.state2)
            {
                this.print(DateTime.Now.ToString()+"：下午好！");
                this.state2 = false;
                this.state1 = true;
            }

        }
        private Timer tim ;
        protected override void OnStart(string[] args)
        {
            // TODO: 在此处添加代码以启动服务。

            this.print(DateTime.Now.ToString() + "：服务启动!");
            this.tim.Start();

        }

        protected override void OnStop()
        {
            // TODO: 在此处添加代码以执行停止服务所需的关闭操作。

            this.print(DateTime.Now.ToString() + "：服务关闭!");
            this.tim.Stop();
        }
        private void print(string info)
        {
            StreamWriter sw = new StreamWriter("F:\\c#\\WindowsServiceTime\\log.txt",true,Encoding.Default);
            sw.WriteLine(info);
            sw.Flush();
            sw.Close();

        }
    }
}
--------------------编程问答--------------------

补充：.NET技术 ,  C#

windows 服务问题 启动后自动停止

windows 服务问题启动后自动停止