【C#】系統配置文件的讀寫

需要添加引用，System.Configuration;

寫系統配置文件：

                Configuration cfa = ConfigurationManager.OpenExeConfiguration(ConfigurationUserLevel.None);


                if (addrService != "")
                {
                    cfa.AppSettings.Settings["WebServiceUrl"].Value = addrService;
                }
                if (setLogin != "")
                {
                    cfa.AppSettings.Settings["LoginServerUrl"].Value = setLogin;
                }
                if (mapPath != "")
                {
                    cfa.AppSettings.Settings["InitMapPath"].Value = mapPath;
                }


                cfa.Save(ConfigurationSaveMode.Modified);
                //重新加載配置文件
                ConfigurationManager.RefreshSection("appSettings");        

讀：

                string value = ConfigurationSettings.AppSettings["InitMapPath"];