public static bool SetCfgValue(string key, string value)
        {
            List <string> lst = new FileIo().ReaderFiles(Path.Combine(System.AppDomain.CurrentDomain.SetupInformation.ApplicationBase, filename));

            if (lst != null)
            {
                for (int i = 0; i < lst.Count; i++)
                {
                    if (lst[i].Length == 0)
                    {
                        continue;
                    }
                    string[] st = lst[i].Split('=');
                    if (st.Length == 1)
                    {
                        continue;
                    }
                    if (st[0] == key)
                    {
                        lst[i] = key + "=" + value;
                        new FileIo().WriterFile(Path.Combine(System.AppDomain.CurrentDomain.SetupInformation.ApplicationBase, filename), lst.ToArray());
                        return(true);
                    }
                }
            }
            else
            {
                lst = new List <string>();
            }
            lst.Add(key + "=" + value);
            new FileIo().WriterFile(Path.Combine(System.AppDomain.CurrentDomain.SetupInformation.ApplicationBase, filename), lst.ToArray());
            return(false);
        }
        public static string GetCfgValue(string key)
        {
            string        str = null;
            List <string> lst = new FileIo().ReaderFiles(Path.Combine(System.AppDomain.CurrentDomain.SetupInformation.ApplicationBase, filename));

            if (lst != null)
            {
                foreach (string s in lst)
                {
                    int index = s.IndexOf('=');
                    if (index <= 0)
                    {
                        continue;
                    }
                    string k = s.Substring(0, index);
                    string v = s.Substring(index + 1, s.Length - index - 1);
                    if (k == key)
                    {
                        str = v;
                        break;
                    }
                }
            }
            return(str);
        }