program.cs

面象对象程序设计基础

using System;
using System.Text;

/// <summary>
/// Summary description for Class1
/// </summary>
/// 

  public  class POINT
{
    private int pos_x;
    private int pos_y;
    public int x
    {
        get
        {
            return pos_x;
        }
        set
        {
            pos_x = value;
        }
    }
    public int y
    {
        get
        {
            return pos_y;
        }
        set
        {
            pos_y = value;
        }
    }  
}
public class CIRCLE : POINT
{
    public const float PI = 3.14F;
    private float RADIUS;
    public float  radius
    {
        get
        {
            return RADIUS;
        }
        set
        {
            RADIUS = value;
        }
    }
    public void  showpoint()
    {
        Console.WriteLine("该圆的圆心是：({0},{1})", x, y);
    }
    public void showPerimeter()
    {
        Console.WriteLine("圆形的周长为：{0}",2 * PI * radius);
    }
    public void showArea()
    {
        Console.WriteLine("圆形的面积为：{0}",  PI * radius * radius);
    }
}
public class CYLINDER : CIRCLE
{
    private float Height;
    public float height
    {
        get
        {
            return Height;
        }
        set
        {
            Height = value;
        }
    }
    public void showSurface()
    {
        Console.WriteLine("圆柱体的表面积为：{0}", 2 * PI * radius * height);
    }
    public void showVolume()
    {

        Console.WriteLine("圆柱体的体积为：{0}", PI * radius * radius * height);
    }
}
public class Class
{
    public static void Main()
    {
        CIRCLE circle = new CIRCLE();
        Console.Write("请输入圆心人X坐标：");
        circle.x=Convert.ToInt32(Console.ReadLine());
        Console.Write("请输入圆心人Y坐标：");
        circle.y=Convert.ToInt32(Console.ReadLine());
        circle.showpoint();
        Console.Write("请输入半径的大小：");
        circle.radius = Convert.ToSingle(Console.ReadLine());
        circle.showPerimeter();
        circle.showArea();
        CYLINDER cylinder = new CYLINDER();
        Console.Write("请输入圆柱体的高：");
        cylinder.height = Convert.ToSingle(Console.ReadLine());
        cylinder.radius = circle.radius;
        cylinder.showSurface();
        cylinder.showVolume();
        Console.ReadLine();
    }
}