// 要建造的產(chǎn)品
  public class Person
  {
    public string Head { get; set; }
    public string Body { get; set; }
    public string Arm { get; set; }
    public string Leg { get; set; }
  }

  // 定義創(chuàng)建者接口，實(shí)現(xiàn)者必須實(shí)現(xiàn)該接口中定義的所有抽象方法，防止實(shí)現(xiàn)者疏忽而遺漏某個(gè)部件的創(chuàng)建
  public abstract class Builder
  {
    protected Person Person { get; set; }
    public Builder()
    {
      Person = new Person();
    }

    // 建造頭
    public abstract void BuildHead();
    // 建造身體
    public abstract void BuildBody();
    // 建造胳膊
    public abstract void BuildArm();
    // 建造腿
    public abstract void BuildLeg();

    // 返回生成好的對(duì)象，這是一個(gè)具體方法，每個(gè)子類(lèi)都可以使用它來(lái)返回一個(gè)已經(jīng)創(chuàng)建成功的對(duì)象
    public Person GetPerson()
    {
      return Person;
    }
  }

  // 建造者的具體實(shí)現(xiàn)，這里是要建造出一個(gè)瘦子
  public class ThinPersonBuilder : Builder
  {
    public ThinPersonBuilder()
    {
      Person = new Person();
    }

    public override void BuildHead()
    {
      Person.Head = "瘦子的腦袋";
    }

    public override void BuildBody()
    {
      Person.Body = "瘦子的身體";
    }

    public override void BuildArm()
    {
      Person.Arm = "瘦子的胳膊";
    }

    public override void BuildLeg()
    {
      Person.Leg = "瘦子的腿";
    }

  }

  // 建造者的具體實(shí)現(xiàn)，這里是要建造出一個(gè)胖子
  public class FatPersonBuilder : Builder
  {
    public override void BuildHead()
    {
      Person.Head = "胖子的腦袋";
    }

    public override void BuildBody()
    {
      Person.Body = "胖子的身體";
    }

    public override void BuildArm()
    {
      Person.Head = "胖子的胳膊";
    }

    public override void BuildLeg()
    {
      Person.Head = "胖子的腿";
    }
  }

  // 建造者模式中的指揮者
  public class PersonDirector
  {
    Builder builder;
    public PersonDirictor(Builder personBuilder)
    {
      builder = personBuilder;
    }

    // 指揮創(chuàng)建一個(gè)人的過(guò)程，并返回創(chuàng)建成功的產(chǎn)品
    public Person BuildPerson()
    {
      builder.BuildHead();
      builder.BuildBody();
      builder.BuildArm();
      builder.BuildLeg();

      return builder.GetPerson();
    }
  }