您可以在代码中配置log4net而不是使用配置文件吗？

Install-Package log4net -Version 2.0.14

using System;
using log4net;
using log4net.Config;

class Program
{
    private static readonly ILog log = LogManager.GetLogger(typeof(Program));

    static void Main(string[] args)
    {
        // 创建 BasicConfigurator 实例
        var configurator = new BasicConfigurator();

        // 添加控制台输出
        configurator.AddConsoleAppender();

        // 设置日志级别为 DEBUG
        configurator.SetRootLevel(Level.Debug);

        // 应用配置
        XmlConfigurator.Configure(configurator);

        // 记录日志
        log.Debug("This is a debug message.");
        log.Info("This is an info message.");
        log.Warn("This is a warning message.");
        log.Error("This is an error message.");
        log.Fatal("This is a fatal message.");
    }
}