using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.IO;

namespace cxx

{

    class test

    {

        static void Main(string[] args)

        {

            decimal price;

            decimal discount;

            decimal discount_price;

            //注意：必须要带“m”,否则将和标准的浮点类型一样。而我们要求的却是

            //用来计算货币类的浮点数，但是可以给其赋整数值。

            // decimal 对小数的运算更加的准确。

            price = 19.95m;

            discount = 0.15m;

              //discount rate is 15%

            discount_price = price - (price * discount);

            Console.WriteLine("Discounted price :$ " + discount_price);

            Console.ReadKey();

        }

    }

}