对不同的文本框使用相同的c#命令

using System;
using System.Windows.Forms;

public class MainForm : Form
{
    private TextBox textBox1;
    private TextBox textBox2;
    private TextBox textBox3;

    public MainForm()
    {
        InitializeComponent();
    }

    private void InitializeComponent()
    {
        this.textBox1 = new TextBox();
        this.textBox2 = new TextBox();
        this.textBox3 = new TextBox();

        // 设置文本框属性
        this.textBox1.Location = new System.Drawing.Point(10, 10);
        this.textBox2.Location = new System.Drawing.Point(10, 40);
        this.textBox3.Location = new System.Drawing.Point(10, 70);

        // 添加事件处理器
        this.textBox1.TextChanged += new EventHandler(CommonTextChanged);
        this.textBox2.TextChanged += new EventHandler(CommonTextChanged);
        this.textBox3.TextChanged += new EventHandler(CommonTextChanged);

        // 将文本框添加到窗体
        this.Controls.Add(this.textBox1);
        this.Controls.Add(this.textBox2);
        this.Controls.Add(this.textBox3);
    }

    private void CommonTextChanged(object sender, EventArgs e)
    {
        // 这里是通用的处理逻辑
        TextBox textBox = sender as TextBox;
        if (textBox != null)
        {
            // 执行相同的操作，例如打印当前文本内容
            Console.WriteLine(textBox.Text);
        }
    }

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

private void CommonTextChanged(object sender, EventArgs e)
{
    TextBox textBox = sender as TextBox;
    if (textBox != null)
    {
        if (textBox == textBox1)
        {
            // 对textBox1的特殊处理
        }
        else if (textBox == textBox2)
        {
            // 对textBox2的特殊处理
        }
        else if (textBox == textBox3)
        {
            // 对textBox3的特殊处理
        }
        else
        {
            // 通用处理逻辑
        }
    }
}