如何将输出发送到日志文件和richtextbox

using System;
using System.IO;
using System.Windows.Forms;

public class Logger
{
    private string logFilePath;
    private RichTextBox richTextBox;

    public Logger(string logFilePath, RichTextBox richTextBox)
    {
        this.logFilePath = logFilePath;
        this.richTextBox = richTextBox;
    }

    public void Log(string message)
    {
        // 将输出写入日志文件
        using (StreamWriter writer = File.AppendText(logFilePath))
        {
            writer.WriteLine(message);
        }

        // 将输出显示在 Richtextbox 中
        richTextBox.AppendText(message + Environment.NewLine);
    }
}

// 使用示例
public class Program
{
    private static Logger logger;

    public static void Main()
    {
        string logFilePath = "path/to/logfile.txt";
        RichTextBox richTextBox = new RichTextBox();

        logger = new Logger(logFilePath, richTextBox);

        // 示例输出
        logger.Log("这是一条日志信息。");

        // 其他代码...
    }
}