public static void Main() { var account = new Account(1); account.Charge(100); account.Consume(50); account.Charge(1000); account.Consume(100); account.Charge(10000); account.Consume(1000); account.Charge(100000); account.Consume(10000); Console.WriteLine("Money:{0} ,Discount:{1}", account.Money, account.Discount); Console.ReadKey(); }