Unity3D开发-C#语言进阶篇(面向对象之多态-抽象应用详解)

 class Program
    {
        static void Main(string[] args)
        {
            Console.WriteLine("---------------------第一题-----------------------------");
            //  1、自己定义抽象类Animal， 抽象出几个抽象方法，
            //再定义一个DOG类，去继承抽象类Animal，
            //需要重写抽象类中的抽象方法，写出测试案例； 

            Animal ani = new Dog();
            ani.Eat();

            Dog dog = new Dog();
            dog.Eat();

            Console.WriteLine("---------------------第二题-----------------------------");
            // 2、创建一个Vehicle类并将它声明为抽象类。
            //在Vehicle类中声明一个NoOfWheels方法，使它返回一个字符串值。
            //创建两个类Car和Motorbike从Vehicle类继承，并在这两个类中实现NoOfWheels方法。
            //在Car类中，应当显示“四轮车”信息；
            //而在Motorbike类中，应当显示“双轮车”信息。
            //创建另一个带Main方法的类，在该类中创建Car和Motorbike的实例，并在控制台中显示消息
            Car car = new Car();
            MotoBike moto = new MotoBike();
            Console.WriteLine("---------------------第三题-----------------------------");
            //3、某学校对教师每月工资的计算公式如下：固定工资 + 课时补贴。
            //专家级讲师的的固定工资为25000元,每个课时补贴60元；
            //高级讲师的固定工资为18000元,每个课时补贴50元; 
            //普通讲师的固定工资为12000元,每个课时补贴40元。
            //定义教师抽象类,派生不同职称的教师类,编写程序求若干教师的月工资
            Teacher zj = new ZhuangjiaTeacher(10);//参数为总课时补贴
            Teacher gj = new GaojiTeacher(9);
            Teacher pt = new PutongTeacher(8);
            Console.ReadKey();

        }
    }

 abstract  class Animal
    {
        public abstract void Eat();

        public abstract void Drink();

        public abstract void La();

        public abstract void Sa();
    }

  class Car:Vehicle
    {
        public Car()
        {


            Console.WriteLine("Car 是:{0}", this.NoOfWheels());
        }
        public override string NoOfWheels()
        {
            this.Str = "四轮车";
            return Str;
        }
    }

 class Dog:Animal
    {
        public override void Drink()
        {
            Console.WriteLine("吃!");
        }

        public override void Eat()
        {
            Console.WriteLine("喝!");
        }

        public override void La()
        {
            Console.WriteLine("辣!");
        }

        public override void Sa()
        {
            Console.WriteLine("撒!");
        }
    }

class GaojiTeacher:Teacher
    {
        public GaojiTeacher(int i)
        {
            this.Gongzi = 18000;
            this.Butie = 50 * i;
            this.Salary();

        }


        public override void Salary()
        {
            Console.WriteLine("高级讲师的固定工资是:{0} 课时补贴是:{1} 总工资是:{2}", this.Gongzi, this.Butie, this.Gongzi + this.Butie);
        }
    }

 class MotoBike:Vehicle
    {
          public MotoBike() {
          
            Console.WriteLine("MotorBike 是:{0}",this.NoOfWheels());
        }
        public override string NoOfWheels()
        {
            this.Str = "两轮车";
            return Str;
        }
    }

  class PutongTeacher:Teacher
    {
        public PutongTeacher(int i)
        {
            this.Gongzi = 12000;
            this.Butie = 40 * i;
            this.Salary();

        }
        public override void Salary()
        {
            Console.WriteLine("普通讲师的固定工资是:{0} 课时补贴是:{1} 总工资是:{2}", this.Gongzi, this.Butie, this.Gongzi + this.Butie);
        }
    }

abstract class Teacher
    {
        private int gongzi;//工资
        private int butie;//补贴

        public int Gongzi {
            set { gongzi = value; }
            get { return gongzi; }
        }

        public int Butie
        {
            get
            {
                return butie;
            }

            set
            {
                butie = value;
            }
        }

        public abstract void Salary();
   
    }

abstract  class Vehicle
    {
        private string str;

        public string Str
        {
            get { return str; }
            set { str = value; }
        }

        public abstract string NoOfWheels();
    }

  class ZhuangjiaTeacher:Teacher
    {
        public ZhuangjiaTeacher(int i) {
            this.Gongzi = 25000;
            this.Butie = 60*i;
            this.Salary();

        }
        public override void Salary()
        {
            Console.WriteLine("专家讲师的固定工资是:{0} 课时补贴是:{1} 总工资是:{2}", this.Gongzi,this.Butie,this.Gongzi+this.Butie);
        }
    }