c# 享元模式

?

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54

// See https://aka.ms/new-console-template for more information /*  个人理解 工厂内先把对象准备好 然后根据参数去取对象    */ int val = 10; XiaoMiFactory miFactory = new(); ImplementationProduct product = miFactory.GetFlyweight("A"); if (product != null) {     product.CreateXiaoMiProduct(val); }     public  class XiaoMiFactory {     private Dictionary<string, object>? dic = new();     public XiaoMiFactory()     {         dic.Add("A", new ImplementationProduct("小米10"));         dic.Add("B", new ImplementationProduct("小米9"));         dic.Add("C", new ImplementationProduct("红米8"));     }     public ImplementationProduct GetFlyweight(string key)     {         return dic[key] as ImplementationProduct;     } }      /// <summary> /// 产品抽象 /// </summary> public abstract class Product {     public abstract void CreateXiaoMiProduct(int innerState); } /// <summary> /// 实现产品 /// </summary> public class ImplementationProduct : Product {     private string intrinsicstate;     public ImplementationProduct(string innerState)     {         intrinsicstate = innerState;     }     public override void CreateXiaoMiProduct(int extrinsicstate)     {         Console.WriteLine("具体实现类: 内部状态 {0}, 外在状态 {1}", intrinsicstate, extrinsicstate);     } }