如何在C#中显示一条消息一定时间

using System;
using System.Windows.Forms;

public class Program
{
    public static void Main()
    {
        ShowMessage("Hello, World!", 3000); // 显示消息框并持续3秒
    }

    public static void ShowMessage(string message, int duration)
    {
        // 创建消息框
        var messageBox = new MessageBoxForm(message);

        // 设置定时器
        var timer = new Timer();
        timer.Interval = duration;
        timer.Tick += (sender, e) =>
        {
            // 关闭消息框
            messageBox.Close();
            timer.Stop();
        };

        // 显示消息框并启动定时器
        messageBox.Show();
        timer.Start();
    }
}

public class MessageBoxForm : Form
{
    public MessageBoxForm(string message)
    {
        // 设置消息框的属性
        Text = "消息";
        FormBorderStyle = FormBorderStyle.FixedDialog;
        MaximizeBox = false;
        MinimizeBox = false;
        StartPosition = FormStartPosition.CenterScreen;
        ShowInTaskbar = false;
        Size = new System.Drawing.Size(300, 150);

        // 创建消息框中的控件
        var label = new Label();
        label.Text = message;
        label.AutoSize = true;
        label.Location = new System.Drawing.Point(20, 20);

        // 将控件添加到消息框中
        Controls.Add(label);
    }
}