Deveel.Readline.MoveDown C# (CSharp) Méthode

        private static void MoveDown()
        {
            if (historyPosn == 0) {
                historyPosn = -1;
                SetCurrent(historySave);
            } else if (historyPosn > 0) {
                --historyPosn;
                SetCurrent(History.GetHistory(historyPosn));
            } else {
                Console.Beep();
            }
        }