设计模式---建造者（Builder）模式，有关系图

using System;

using System.Collections.Generic;

using System.Text;

namespace ConsoleApplication1

{

    abstract class Builder

    {

        public abstract void SetPrice();

        public abstract void SetName();

    }

    class TVBuilder:Builder

    {

        private RawMateria rm;

        public TVBuilder()

        {

            rm = new RawMateria();

        }

    

        public override  void SetPrice()

        {

            rm.Price = "1500";

        }

        public override void SetName()

        {

            rm.Name = "TV";

        }

        public RawMateria GetTV()

        {

            return rm;

        }

    }

    class PCBuilder:Builder 

    {

        private RawMateria rm;

    

        public PCBuilder()

        {

            rm = new RawMateria();

        }

        public override void SetName()

        {

            rm.Name = "PC";

        }

        public override void SetPrice()

        {

            rm.Price = "2000";

        }

        public RawMateria GetPC()

        {

            return rm;

        }

    }

    class RawMateria

    {

        String _name;

        String _price;

        public String Name

        {

            get

            {

                return _name;

            }

            set

            {

                _name = value;

            }

        }

        public String Price

        {

            get

            {

                return _price;

            }

            

            set

            {

                _price = value;

            }

        }

        public void Show()

        {

            Console.WriteLine(this.Name +"    "+this.Price );

        }

    }

    class Director

    {

        private PCBuilder pcbuilder=new PCBuilder ();

        private TVBuilder tvbuilder=new TVBuilder ();

        public RawMateria GiveMeTV()

        {

            tvbuilder.SetName();

            tvbuilder.SetPrice();

            return tvbuilder.GetTV();

        }

        public RawMateria GiveMePC()

        {

            pcbuilder.SetName();

            pcbuilder.SetPrice();

            return pcbuilder.GetPC();

        }

    }

    class Client

    {

        public static  void Main()

        {

            Director d = new Director();

            d.GiveMePC().Show();

            d.GiveMeTV().Show();

            Console.Read();

        }

    }

}