using System;

​

namespace RectangleApplication

{

  public class Rectangle

    {

        //成员变量

        private double length;

        private double width;

​

        public void Acceptdetails()

        {

            Console.WriteLine("请输入长度：");

            length = Convert.ToDouble(Console.ReadLine());

            Console.WriteLine("请输入宽度：");

            width = Convert.ToDouble(Console.ReadLine());

        }

        public double GetArea()

        {

            return length * width;

        }

        public void Display()

        {

            Console.WriteLine("长度： {0}", length);

            Console.WriteLine("宽度： {0}", width);

            Console.WriteLine("面积： {0}", GetArea());

        }

    }//end class Rectangle    

​

      public static void Main(string[] args)

        {

            Rectangle r = new Rectangle();

            r.Acceptdetails();

            r.Display();

            Console.ReadLine();

        }

    }

​