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修饰模式（Decorator结构型）C#简单例子

2024-08-10 12:44:13   216人阅读

修饰模式（Decorator结构型）C#简单例子

玩家基本功能是移动、运行等等。BaseAbility
新增加功能：1、伤害技能harmAbility；2、阻碍技能BaulkAbility；3、辅助技能assistAbility
玩家1增加伤害技能 Decorator harm = new HarmAbility(baseAbility);
玩家2增加伤害技能、阻碍技能 Decorator baulk = new BaulkAbility(harm);
玩家3增加伤害技能、阻碍技能和辅助技能 Decorator assist = new AssistAbility(baulk);

 

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namespace adapterpattern
{
    public partial class DecoratorForm : Form
    {
        public DecoratorForm()
        {
            InitializeComponent();
        }
 
        private void btnDisplay_Click(object sender, EventArgs e)
        {
            BaseAbility baseAbility = new BaseOperation();
            baseAbility.Run();
            listBox1.Items.Add(baseData.baseString);
 
            baseData.baseString = "";
            listBox1.Items.Add("***********玩家1新功能：伤害**************");
            Decorator harm = new HarmAbility(baseAbility);
            harm.Run();
            listBox1.Items.Add(baseData.baseString);
 
            baseData.baseString = "";
            listBox1.Items.Add("***********玩家2新功能：伤害和阻碍**************");
            Decorator baulk = new BaulkAbility(harm);
            baulk.Run();
            listBox1.Items.Add(baseData.baseString);
 
            baseData.baseString = "";
            listBox1.Items.Add("***********玩家3新功能：伤害、阻碍、辅助**************");
            Decorator assist = new AssistAbility(baulk);
            assist.Run();
            listBox1.Items.Add(baseData.baseString);
        }
    }
 
    public abstract class BaseAbility    //抽象的基础功能
    {
        public abstract void Run();
    }
    public class BaseOperation : BaseAbility//实体基础功能
    {
        public override void Run()
        {
            baseData.baseString += "---移动---";
            baseData.baseString += "----运行----";
        }
    }
    public abstract class Decorator : BaseAbility//接口继承
    {
        private BaseAbility baseAbility;//Has—A对象组合
        public Decorator(BaseAbility baseAbility)//装饰连接点
        {
            this.baseAbility = baseAbility;
        }
        public override void Run()
        {
            baseAbility.Run();
        }
    }
    public class baseData//数据中转站
    {
        public static string baseString { get; set; }
    }
    public class HarmAbility : Decorator//增加伤害技能
    {
        public HarmAbility(BaseAbility baseAbility)
            : base(baseAbility)
        { }
        public override void Run()//增加伤害
        {
            // base.Move();
            base.Run();
            baseData.baseString += "-----伤害-----";
        }
    }
    public class BaulkAbility : Decorator//增加阻碍技能
    {
 
        public BaulkAbility(BaseAbility baseAbility)
            : base(baseAbility)
        { }
        public override void Run()//增加阻碍
        {
            //   base.Move();
            base.Run();
            baseData.baseString += "-----阻碍-----";
        }
    }
    public class AssistAbility : Decorator//增加辅助技能
    {
        public AssistAbility(BaseAbility baseAbility)
            : base(baseAbility)
        { }
        public override void Run()
        {
            base.Run();
            baseData.baseString += "-----辅助-----";
        }
    }
}

修饰模式（Decorator结构型）C#简单例子


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