设计模式_策略模式

策略模式

介绍

设计模式	定义	案例	问题堆积在哪里	解决办法
策略模式	对算法进现封装，抽象如：IF elseIF 一大堆可以配合工厂模式使用	炼丹炉里做饭要求菜谱和食材可配置	问题在可配置菜谱	封装菜谱然后抽象菜谱，为了统一使用方法

类图

CaiPuBase 抽象菜谱

CaiPuA 菜谱A

CaiPuB 菜谱B

CaiPuC 菜谱C

LianDanLu 炼丹炉

代码

CaiPuBase

using System.Collections.Generic;

/// <summary>
/// 菜谱
/// </summary>
public abstract class CaiPuBase
{
    public abstract string Create(List<string> foodList);
}

CaiPuA

using System.Collections.Generic;

public class CaiPuA : CaiPuBase
{
    string funName = "炒";

    public override string Create(List<string> elementList)
    {
        string result;
        result = funName + ":";
        foreach (var item in elementList)
        {
            result += item;
        }

        return result;
    }
}

CaiPuB

using System.Collections.Generic;

public class CaiPuB : CaiPuBase
{
    string funName = "蒸";

    public override string Create(List<string> elementList)
    {
        string result;
        result = funName + ":";
        foreach (var item in elementList)
        {
            result += item;
        }

        return result;
    }
}

CaiPuC

using System.Collections.Generic;

public class CaiPuC : CaiPuBase
{
    string funName = "煮";

    public override string Create(List<string> elementList)
    {
        string result;
        result = funName + ":";
        foreach (var item in elementList)
        {
            result += item;
        }

        return result;
    }
}

LanDanLu

using System.Collections.Generic;

/// <summary>
/// 炼丹炉
/// </summary>
public class LianDanLu
{
    public string GetFood(CaiPuBase caiPu, List<string> elementList)
    {
        return caiPu.Create(elementList);
    }
}

测试代码

using System.Collections;
using System.Collections.Generic;
using UnityEngine;

public class TestCL : MonoBehaviour
{
    void Start()
    {
        LianDanLu ldl = new LianDanLu();

        {
            List<string> list = new List<string>
            {
                "萝卜",
                "鸡蛋"
            };
            string food = ldl.GetFood(new CaiPuA(), list);
            Debug.Log(food);
        }

        {
            List<string> list = new List<string>
            {
                "萝卜",
                "鸡蛋"
            };
            string food = ldl.GetFood(new CaiPuB(), list);
            Debug.Log(food);
        }

        {
            List<string> list = new List<string>
            {
                "萝卜",
                "鸡蛋"
            };
            string food = ldl.GetFood(new CaiPuC(), list);

            // show
            Debug.Log(food);
        }

    }
}