C#面向对象思想

封装

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

namespace PropertyClass
{
    class Program
    {
        static void Main(string[] args)
        {
          Myclass mycalss = new Myclass();
            mycalss.Method();
        }
    }

    class Myclass {
        public Myclass() {
            Console.WriteLine("Test class");
        }
        public void Method(){
            Method_1();
            Method_2();
        }
        private void Method_1() {
            Console.WriteLine("ONE");
        }
        private void Method_2() {
            Console.WriteLine("TWO");
        }
    }
}

继承

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

namespace PropertyClass
{
    class Program
    {
        static void Main(string[] args)
        {
            Myclass myclass = new Myclass();
            myclass.Method();
            Myclass1 myclass1 = new Myclass1();
            myclass1.Method();
        }
    }

    class Myclass {
        public Myclass() {
            Console.WriteLine("父类Test class");
        }
        public void Method(){
            Method_1();
            Method_2();
        }
        private void Method_1() {
            Console.WriteLine("父类ONE");
        }
        private void Method_2() {
            Console.WriteLine("父类TWO");
        }
    }

    class Myclass1:Myclass{
        public Myclass1(){
            Console.WriteLine("子类Test class");
        }
        public void Method(){
            Console.WriteLine("子类方法");
        }
    }
}

多态

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

namespace PropertyClass
{
    class Program
    {
        static void Main(string[] args)
        {
            Myclass myclass = new Myclass();
            myclass.Method();
            Myclass1 myclass1 = new Myclass1();
            myclass1.Method();
            Myclass2 myclass2 = new Myclass2();
            myclass2.Method();

        }
    }

    class Myclass {
        public Myclass() {
            Console.WriteLine("父类测试");
        }
        public virtual void Method (){
            Console.WriteLine("父类方法");
        }
    }

    class Myclass1 : Myclass {
        public Myclass1() {
            Console.WriteLine("子类1测试");
        }
        public override void Method() {
            Console.WriteLine("子类1方法");
        }
    }

    class Myclass2 : Myclass {
        public Myclass2() {
            Console.WriteLine("子类2测试");
        }
        public override void Method()
        {
            Console.WriteLine("子类2方法");
        }
    }

}