using System.Collections;

using System.Collections.Generic;

using UnityEngine;

//加法操作类

public class AddOperation : Operation

{

    //重写父类方法

    public override double GetResult()

    {

        double dReult = 0;

        dReult = m_dNumberA + m_dNumberB;

        return dReult;

    }

}

using System.Collections;

using System.Collections.Generic;

using UnityEngine;

//减法操作类

public class SubOperation : Operation

{

    //重写父类方法

    public override double GetResult()

    {

        double dReult = 0;

        dReult = m_dNumberA - m_dNumberB;

        return dReult;

    }

}

using System.Collections;

using System.Collections.Generic;

using UnityEngine;

/// <summary>

/// 乘法操作类

/// </summary>

public class RideOperation : Operation

{

    public override double GetResult()

    {

        double dResult = 0;

        dResult = m_dNumberA * m_dNumberB;

        return dResult;

    }

}

using System.Collections;

using System.Collections.Generic;

using UnityEngine;

public class Operation

{

    public double m_dNumberA;

    public double m_dNumberB;

    //虚方法提供子类重写

    public virtual double GetResult()

    {

        double dResult = 0;

        return dResult;

    }

}

public class OperationFactory

{

   public Operation CreateOperate(string str)

    {

        Operation operation = null;

        switch (str)

        {

            case "+":

                operation = new AddOperation ();

                break;

            case "-":

                operation = new SubOperation();

                break;

            case "*":

                operation = new RideOperation();

                break;

            default:

                break;

        }

        return operation;

    }

}

using System.Collections;

using System.Collections.Generic;

using UnityEngine;

public class OperateTest : MonoBehaviour

{

    // Start is called before the first frame update

    void Start()

    {

        OperationFactory factory = new OperationFactory();

        Operation operation = factory.CreateOperate("+");

        operation.m_dNumberA = 5;

        operation.m_dNumberB = 2;

        double addResult = operation.GetResult();

        Debug.Log("加:" + addResult);

        Operation Suboperation = factory.CreateOperate("-");

        Suboperation.m_dNumberA = 10;

        Suboperation.m_dNumberB = 2;

        double subResult = Suboperation.GetResult();

        Debug.Log("减:" + subResult);

        Operation Rideoperation = factory.CreateOperate("*");

        Rideoperation.m_dNumberA = 2;

        Rideoperation.m_dNumberB = 2;

        double rideResult = Rideoperation.GetResult();

        Debug.Log("乘:" + rideResult);

        //1+(1+2)+(1+2+3)+...+(1+2+3+...+10)之和

        int i = 1, j = 1, s = 0, s1 =0;

        while (j<=10)

        {

            while (i<=j)

            {

                s += i;

                i++;

            }

            s1 += s;

            j++;

        }

        Debug.Log(s1);

    }

}

using System.Collections;

using System.Collections.Generic;

using UnityEngine;

/// <summary>

/// 单例模式基类模块的作用主要是——减少单例模式重复代码的书写

/// </summary>

/// <typeparam name="T"></typeparam>

public class BaseManager<T> where T :new ()

{

    private static T _instance;

    public static T GetInstance()

    {

        if (_instance ==null)

        {

            _instance = new T();

        }

        return _instance;

    }

}

using System.Collections;

using System.Collections.Generic;

using UnityEngine;

public class CeShi2 : BaseManager <CeShi2>

{

    public int oko = 0;

}

怎么继承单例的

using System.Collections;

using System.Collections.Generic;

using UnityEngine;

public class CeShi3 : BaseManager <CeShi3>

{

    public bool bol = false;

}

怎么继承单例的

using System.Collections;

using System.Collections.Generic;

using UnityEngine;

public class CeShi1 : MonoBehaviour

{

    // Start is called before the first frame update

    void Start()

    {

        CeShi2.GetInstance().oko++;

        CeShi3.GetInstance().bol = true;

        Debug.Log(CeShi2.GetInstance().oko

             +"    " + CeShi3.GetInstance().bol);

    }

    // Update is called once per frame

    void Update()

    {

        if (Input.GetMouseButtonDown(0))

        {

            //向缓存池中拿东西

            PoolManager.GetInstance().GetObj("Cube");

        }

        if (Input.GetMouseButtonDown(1))

        {

            PoolManager.GetInstance().GetObj("Sphere");

        }

        Debug.Log(PoolManager.GetInstance().pool1Dic.Count);

    }

}

怎么使用单例的

using System.Collections;

using System.Collections.Generic;

using UnityEngine;

/// <summary>

/// 缓存池模块

/// </summary>

public class PoolManager : BaseManager <PoolManager>

{

    //这里是缓存池模块

    //创建字段存储容器

    public Dictionary<string, List<GameObject>> pool1Dic = new Dictionary<string, List<GameObject>>();

    private GameObject poolObj;

    //取得游戏物体

    public GameObject GetObj(string name)

    {

        GameObject obj = null;

        //ContainsKey判断是否包含指定的“键名”

        //.count 获得符合条件的个数

        if (pool1Dic.ContainsKey(name) && pool1Dic[name].Count > 0)

        {

            //取得List中的第一个

            obj = pool1Dic[name][0];

            //移除第零个(这样才能允许同时创建多个物体)

            //这样才是真正的“拿出来”

            pool1Dic[name].RemoveAt(0);

        }

        else

        {

            //缓存池中没有该物体，我们去目录中加载

            //外面传一个预设体的路径和名字，我内部就去加载它

            //Resources类允许你从指定的路径查找或访问资源(api)

            obj = GameObject.Instantiate(Resources.Load<GameObject>(name));

            //创建对象后，将对象的名字与池中名字相符

            obj.name = name;

        }

        //让物体显示出来

        obj.SetActive(true);

        obj.transform.parent = null;

        return obj;

    }

    //外界返还游戏物体

    public void PushObj(string name, GameObject obj)

    {

        if (poolObj == null)

        {

            poolObj = new GameObject("Pool");

        }

        //将这个物体设置父亲为空物体

        obj.transform.parent = poolObj.transform;

        //让物体失活

        obj.SetActive(false);

        //里面有记录这个键（有这个抽屉）

        if (pool1Dic.ContainsKey(name))

        {

            pool1Dic[name].Add (obj);

        }

        //未曾记录这个键（没有这个抽屉）

        else

        {

            pool1Dic.Add(name, new List<GameObject>() { obj });

        }

    }

}

缓存池代码

using System.Collections;

using System.Collections.Generic;

using UnityEngine;

/// <summary>

/// 挂到物体身上的

/// </summary>

public class DelPush : MonoBehaviour

{

    void OnEnable()

    {

        //unity自带的延迟方法 在time秒后，延迟调用方法methodName

        Invoke("Push", 1);

    }

    //放回去

    void Push()

    {

        PoolManager.GetInstance().PushObj(transform.name, this.gameObject);

    }

}

挂在物体上的代码