深入理解Java设计模式之建造者模式

//Product类，由多个部件组成
public class Product
{
    List<string> parts = new List<string>();
    //添加产品部件
    public void Add(string part)
    {
        parts.Add(part);
    }
     public void show()
    {
        Console.WriteLine("\n  创建产品");
        foreach (var item in parts)
        {
            Console.WriteLine("item");
        }
    }
}

abstract class Builder
{
    public abstract void BuilderPartA();
    public abstract void BuilderPartB();
    public abstract Product GetResult();
}

//ConcreteBuilder1类---具体建造者类
class ConcreteBuilder1 : Builder
{
    private Product product = new Product();
    //建造具体的两个部件
    public override void BuilderPartA()
    {
        product.Add("部件A");
    }
     public override void BuilderPartB()
    {
        product.Add("部件B");
    }
     public override Product GetResult()
    {
        return product;
    }
}
//ConcreteBuilder2类---具体建造者类
class ConcreteBuilder2 : Builder
{
    private Product product = new Product();
    //建造具体的两个部件
    public override void BuilderPartA()
    {
        product.Add("部件X");
    }
     public override void BuilderPartB()
    {
        product.Add("部件Y");
    }
     public override Product GetResult()
    {
        return product;
    }
}

class Director
{
    public void Construct(Builder builder)
    {
        //用来指挥建造过程
        builder.BuilderPartA();
        builder.BuilderPartB();
    }
}

static void Main(string[] args)
{
    Director director = new Director();
    Builder b1 = new ConcreteBuilder1();
    Builder b2 = new ConcreteBuilder2();
     //指挥者用ConcreteBuilder1方法建造产品
    director.Construct(b1);
    Product p1 = b1.GetResult();
    p1.show();
     //指挥者用ConcreteBuilder2方法建造产品
    director.Construct(b2);
    Product p2 = b2.GetResult();
    p2.show();
     Console.Read();
}