简单工厂模式-2015-1-7

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

namespace ConsoleApplication1
{
    class Program
    {
        static void Main(string[] args)
        {
            ACompany item = CompanyFactory.CreateCompany(EnumCompany.Car);
            if (item == null)
                Console.WriteLine("null");
            else
            {
                item.Open();
                item.Close();
            }

            Console.WriteLine("****************************************");

            item = CompanyFactory.CreateCompany(EnumCompany.Car);
            if (item == null)
                Console.WriteLine("null");
            else
            {
                item.Open();
                item.Close();
            }

            Console.ReadKey();
        }
    }

    enum EnumCompany
    {
        Car=0,
        Boat=1,
        Shoat=2,
        Food=3,
    }
    class CompanyFactory
    {
        public static ACompany CreateCompany(EnumCompany item)
        {
            ACompany company = null;
            switch (item)
            {
                case EnumCompany.Car: company= new Car(); break;
                case EnumCompany.Boat: company= new Boat(); break;
            }
            return company;
        }
    }

    interface ICompany
    {
        bool Open();
        bool Close();
    }

    abstract class ACompany : ICompany
    {
        public int Count = 0;
        public static int Flag = 0;
        public abstract bool Open();

        public abstract bool Close();

        public void Test()
        {

        }

        public abstract void Method();
    }

    class Car:ACompany
    {
        public override void Method()
        {
            Console.WriteLine(this.ToString());

        }

        public override bool Open()
        {
            Console.WriteLine(this.ToString());

            Count++;
            Flag++;
            Console.WriteLine("Count:{0}", Count);
            Console.WriteLine("Flag:{0}", Flag);

            return true;
        }

        public override bool Close()
        {
            Console.WriteLine(this.ToString());
            Count++;
            Flag++;
            Console.WriteLine("Count:{0}", Count);
            Console.WriteLine("Flag:{0}", Flag);

            return true;
        }
    }

    class Boat : ACompany
    {
        public override bool Open()
        {
            Console.WriteLine(this.ToString());
            return true;
        }

        public override bool Close()
        {
            Console.WriteLine(this.ToString());
            return true;
        }

        public override void Method()
        {
            Console.WriteLine(this.ToString());
        }
    }

}

 /*
             * 输出结果
            ConsoleApplication1.Car
            Count:1
            Flag:1
            ConsoleApplication1.Car
            Count:2
            Flag:2
            ****************************************
            ConsoleApplication1.Car
            Count:1
            Flag:3
            ConsoleApplication1.Car
            Count:2
            Flag:4
             *
             */

<div>这篇文章简单罗列了在项目开发中用到的类、接口、抽象类，三者组合在一起构成了简单的工厂模式</div>