关于C#继承的简单应用代码分析

//基类
    abstract class Shape
    {
        //抽象方法 计算面积
        public abstract double ComputerArea();

    }

//子类 继承Shape 实现抽象方法
    class Circle : Shape
    {
        private double _radius;

        //构造函数
        public Circle(double radius) => _radius = radius;

        //实现抽象方法
        public override double ComputerArea()
        {
            return _radius * _radius * Math.PI;
        }
    }

    //子类 继承Shape 实现抽象方法
    class Rectangle : Shape
    {

        private double _width;

        private double _height;

        //构造函数
        public Rectangle(double width, double height)
        {
            _width = width;
            _height = height;
        }
        //实现抽象方法
        public override double ComputerArea()
        {
            return _width * _height;
        }
    }

    //子类 继承Shape 实现抽象方法
    class Triangle : Shape
    {

        private double _bottom;

        private double _height;

        //构造函数
        public Triangle(double bottom, double height)
        {
            _bottom = bottom;
            _height = height;
        }
        //实现抽象方法
        public override double ComputerArea()
        {
            return _bottom * _height / 2;
        }
    }

//计算类
    class Calculate
    {
        //传入一个父类作为参数，调用方法
        public void Calc(Shape shape)
        {

            Console.WriteLine($"{shape.GetType().Name}的面积:{shape.ComputerArea()}");
        }
    }

class Program
    {
        static void Main(string[] args)
        {
            var circle = new Circle(5);
            var rect = new Rectangle(5, 10);
            var triangle = new Triangle(6, 8);

            var calc = new Calculate();

            calc.Calc(circle);
            calc.Calc(rect);
            calc.Calc(triangle);
        }
    }

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;



namespace inheritApplication
{
  //程序员类（基类）
  class Programmer
  {
    public string name = "我是程序员";
  }
  //java程序员类
  class Jpro 
  {
    public string name = "java程序员";
    public string language = "我用java语法写代码";
  }
  //C程序员类
  class Cpro 
  {
    public string name = "C#程序员";
    public string language = "我用C#语法写代码";
  }
  //编写项目类
  class Pro : Programmer //继承基类
  {
    public void WriteProgram(Jpro program) //继承java程序员类
    {
      Console.WriteLine("" + program.name + "：" + name + "," + program.language + "");
    }
    public void WriteProgram(Cpro program)
    {
      Console.WriteLine("" + program.name + "：" + name + "," + program.language + "");
    }
  }
  //主程序
  class Program
  {
    static void Main(string[] args)
    {
      Pro p = new Pro();
      Jpro p1 = new Jpro();
      p.WriteProgram(p1);
      Cpro p2 = new Cpro();
      p.WriteProgram(p2);
      Console.ReadKey();
    }
  }
}