c#读取类库配置文件方法

AppDomain appDomain = AppDomain.CurrentDomain;
Configuration config = ConfigurationManager.OpenExeConfiguration(Path.Combine(appDomain.BaseDirectory, "XXX.dll"));
XXX= int.Parse(config.AppSettings.Settings["XXX"].Value);
XXX= int.Parse(config.AppSettings.Settings["XXX"].Value);
XXX= int.Parse(config.AppSettings.Settings["XXX"].Value);
XXX= int.Parse(config.AppSettings.Settings["XXX"].Value);