怎么开发windows服务程序？
用C#创建Windows服务的步骤:
1.创建Windows Service项目
从Visual C# 工程中选取 Windows 服务（Windows Service）选项，给工程一个新文件名，然后点击 确定。
2.向服务中函数功能实现
OnStart函数在启动服务时执行，OnStop函数在停止服务时执行。在这里，当启动和停止服务时，向一个文本文件中写入一些文字信息，
示例代码如下:
using System;
using System.CollectIOns.Generic;
using System.ComponentModel;
using System.Data;
using System.Diagnostics;
using System.IO;
using System.Linq;
using System.ServiceProcess;
using System.Text;
using System.Threading.Tasks;
namespace MyService
{
public partial class Service1 : ServiceBase
{
public Service1()
{
InitializeComponent();
}
protected override void OnStart(string[] args)
{
FileStream fs = new FileStream(@"d:\xx.txt", FileMode.OpenOrCreate, FileAccess.Write);
StreamWriter sw = new StreamWriter(fs);
sw.BaseStream.Seek(0, SeekOrigin.End);
sw.WriteLine("WindowsService: Service Started" + DateTime.Now.ToString() + "\n");
sw.Flush();
sw.Close();
fs.Close();
}
//protected override void OnContinue()
//{
// base.OnContinue();
//}
//protected override void OnPause()
//{
// base.OnPause(); // father class method inherit
//}
//protected override void OnShutdown()
//{
// base.OnShutdown();
//}
protected override void OnStop()
{
FileStream fs = new FileStream(@"d:\xx.txt", FileMode.OpenOrCreate, FileAccess.Write);
StreamWriter sw = new StreamWriter(fs);
sw.BaseStream.Seek(0, SeekOrigin.End);
sw.WriteLine("WindowsService: Service Stopped" + DateTime.Now.ToString() + "\n");
sw.Flush();
sw.Close();
fs.Close();
}
}
}
