public class Config {     public Dictionary<string, string> configData;     string fullFileName;     public Config(string _fileName)     {         configData = new Dictionary<string,string>();         fullFileName = Application.StartupPath + @"" + _fileName;         bool hasCfgFile =File.Exists(Application.StartupPath + @"" + _fileName);         if (hasCfgFile == false)         {             StreamWriter writer = new StreamWriter(File.Create(Application.StartupPath + @"" + _fileName), Encoding.Default);             writer.Close();         }         StreamReader reader = new StreamReader(Application.StartupPath + @"" + _fileName, Encoding.Default);         string line;         int indx = 0;         while ((line = reader.ReadLine()) != null)         {             if (line.StartsWith(";") || string.IsNullOrEmpty(line))                 configData.Add(";" + indx++, line);             else             {                 string[] key_value = line.Split('=');                 if (key_value.Length >= 2)                     configData.Add(key_value[0], key_value[1]);                 else                     configData.Add(";" + indx++, line);             }         }         reader.Close();     }     public string get(string key)     {         if (configData.Count <= 0)             return null;         else if(configData.ContainsKey(key))             return configData[key].ToString();         else             return null;     }     public void set(string key, string value)     {         if (configData.ContainsKey(key))             configData[key] = value;         else             configData.Add(key, value);     }     public void save()     {         StreamWriter writer = new StreamWriter(fullFileName,false,Encoding.Default);         IDictionaryEnumerator enu = configData.GetEnumerator();         while (enu.MoveNext())         {             if (enu.Key.ToString().StartsWith(";"))                 writer.WriteLine(enu.Value);             else                 writer.WriteLine(enu.Key + "=" + enu.Value);         }         writer.Close();     } }