c#中配置文件(app.config)的使用

//open app.config

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

       

//add app settings

cfnData.AppSettings.Settings.Add("1","0");

//remove settings

cfnData.AppSettings.Settings.Remove("1");

//save app settings

cfnData.Save(ConfigurationSaveMode.Modified);

//check whether app.config isnull

string [] strName=ConfigurationManager.AppSettings.AllKeys;

           if(strName.Length !=0)

           {

           }