Log 4 net快速構成使用

2.程序入口加载配置文件

 public JITClientForm()
        {
            //      
            var configName = System.AppDomain.CurrentDomain.BaseDirectory + @"LogConfig\log4net.config";
            log4net.Config.XmlConfigurator.ConfigureAndWatch(configFile: new FileInfo(configName));
            InitializeComponent();
        }

 private readonly ILog _log = LogManager.GetLogger("");

 this._log.Error($"{ex.Message}");
 this._log.Info("");
 this._log.Debug("");