C#,窗体程序，接收到UDP数据“shutdown”，程序一分钟后关闭，然后再关闭电脑主机的完整代码

在C#中，创建一个简单的Windows Forms应用程序接收UDP数据，并在接收到特定数据（比如"shutdown"）后延迟一分钟关闭，你可以按照以下步骤编写：

using System;
using System.Net;
using System.Net.Sockets;
using System.Timers;

public partial class MainForm : Form
{
    private UdpClient udpClient;
    private Timer shutdownTimer;

    public MainForm()
    {
        InitializeComponent();
        InitializeUdpClient();
    }

    private void InitializeUdpClient()
    {
        udpClient = new UdpClient(YourPortNumber); // 替换为你要监听的端口号
        shutdownTimer = new Timer(60 * 1000); // 创建一个计时器，延迟一分钟
        shutdownTimer.Elapsed += ShutdownHandler;
        shutdownTimer.Enabled = false; // 初始状态禁用
    }

    private void Form1_Load(object sender, EventArgs e)
    {
        try
        {
            BeginReceive();
        }
        catch (SocketException ex)
        {
            MessageBox.Show("Error initializing UDP client: " + ex.Message);
        }
    }

    private void BeginReceive()
    {
        IPEndPoint remoteEP = new IPEndPoint(IPAddress.Any, 0);
        udpClient.BeginReceive(ref remoteEP, 0, 1024, SocketFlags.None, new AsyncCallback(ReceiveCallback), null);
    }

    private void ReceiveCallback(IAsyncResult ar)
    {
        byte[] bytes = udpClient.EndReceive(ar, ref remoteEP);
        string dataReceived = Encoding.ASCII.GetString(bytes);

        if (dataReceived.ToLower() == "shutdown") // 检查是否接收到"shutdown"数据
        {
            shutdownTimer.Start(); // 开始倒计时
        }
    }

    private void ShutdownHandler(object sender, ElapsedEventArgs e)
    {
        Application.Exit(); // 应用程序即将退出，关闭窗口
        Environment.Exit(0); // 关闭整个进程
    }
}

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