收益计算器（用decimal类型）

Console.Write("请输入您的存款金额:");

            decimal saveMoney = decimal.Parse(Console.ReadLine());

            Console.Write("请输入您的存款年限:");

            int year = int.Parse(Console.ReadLine());

            decimal rate;

            if (year==1)

            {

                rate = 0.04m;

            }

            else if (year>=2&&year<=5)

            {

                rate = 0.048m;

            }

            else

            {

                rate = 0.052m;

            }

            decimal rateMoney=saveMoney*rate*year*10000;

            decimal extraMoney = 0;

            if (saveMoney>=50)

            {

                extraMoney = rateMoney* 0.1m;

            }

            decimal all = rateMoney+ extraMoney;

            Console.WriteLine("恭喜您,存款成功"+year+"年到期后,您将获得"+all+"元的收益");

            Console.ReadLine();