如何知道下一个c#按下了哪个按钮

using System;
using System.Windows.Forms;

public class MainForm : Form
{
    private Button button1;
    private Button button2;

    public MainForm()
    {
        InitializeComponent();
    }

    private void InitializeComponent()
    {
        this.button1 = new Button();
        this.button2 = new Button();

        // 设置按钮属性
        this.button1.Text = "Button 1";
        this.button1.Location = new System.Drawing.Point(50, 50);
        this.button1.Click += new EventHandler(Button1_Click);

        this.button2.Text = "Button 2";
        this.button2.Location = new System.Drawing.Point(50, 100);
        this.button2.Click += new EventHandler(Button2_Click);

        // 将按钮添加到窗体
        this.Controls.Add(this.button1);
        this.Controls.Add(this.button2);
    }

    private void Button1_Click(object sender, EventArgs e)
    {
        MessageBox.Show("Button 1 was clicked!");
    }

    private void Button2_Click(object sender, EventArgs e)
    {
        MessageBox.Show("Button 2 was clicked!");
    }

    [STAThread]
    static void Main()
    {
        Application.EnableVisualStyles();
        Application.SetCompatibleTextRenderingDefault(false);
        Application.Run(new MainForm());
    }
}