c# 建造者模式

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// See https://aka.ms/new-console-template for more information /*  个人理解 获取要组装的东西 叫人去组装 获取组装好的东西展示        */ Console.WriteLine("Hello, World!"); XiaoMi xiaoMi = new XiaoMi();// Builder builder1 = new ConcreteBuilder1(); xiaoMi.ConstructPhone(builder1); Phone phone = builder1.GetBuilder(); phone.Show();       public class XiaoMi {     public void ConstructPhone(Builder builder)     {         builder.BuildPartCamera();         builder.BuildPartScreen();     }   } public class Phone {     private List<string> list = new();     public void Add(string part)     {         list.Add(part);     }     public void Show()     {         Console.WriteLine("手机开始在组装.......");         foreach (string part in list)         {             Console.WriteLine("组件" + part + "已装好");         }           Console.WriteLine("手机组装好了");     } }   public abstract class Builder {     /// <summary>     /// 摄像头     /// </summary>     public abstract void BuildPartCamera();     /// <summary>     /// 屏幕     /// </summary>     public abstract void BuildPartScreen();       public abstract Phone GetBuilder();   }   public class ConcreteBuilder1 : Builder {     Phone phone = new Phone();     public override void BuildPartCamera()     {         phone.Add("装相机");     }       public override void BuildPartScreen()     {         phone.Add("装屏幕");     }       public override Phone GetBuilder()     {         return phone;     } }