C#设计模式——抽象工厂模式

Posted 2020-08-27 雪中狼

一、概念：将对象的创建交给一个叫做工厂的对象来统一进行处理。主要是将对象的依赖关系进行解耦，消除对象之间的直接耦合。

二、模型：

1、逻辑模型

2、物理模型

 

三、代码实现：

1、抽象工厂代码：

using System;  
using System.Collections.Generic;  
using System.Text;  
 
namespace ConsoleApplication1  
{  
    /// <summary>  
    /// 水果抽象工厂  
    /// </summary>  
    public abstract class FruitAbstractFactory  
    {  
        /// <summary>  
        /// 水果名称，表示哪种水果如：苹果、香蕉、橘子  
        /// </summary>  
        public string FruitName { get; set; }  
        /// <summary>  
        /// 抽象方法，获取要批发水果的  
        /// </summary>  
        /// <returns>要批发的水果</returns>  
        public abstract string GetCurrentFruit();  
    }  
} 

2、苹果工厂代码

using System;  
using System.Collections.Generic;  
using System.Text;  
 
namespace ConsoleApplication1  
{  
    /// <summary>  
    /// 苹果工厂  
    /// </summary>  
    public class AppleFactory : FruitAbstractFactory  
    {  
        public AppleFactory()  
        {  
            FruitName = "苹果";  
        }  
        /// <summary>  
        /// 重写基类的获取水果方法  
        /// </summary>  
        /// <returns>要批发的水果</returns>  
        public override string GetCurrentFruit()  
        {  
            return "给你:" + base.FruitName;  
        }  
    }  
}  

3、香蕉工厂代码

using System;  
using System.Collections.Generic;  
using System.Text;  
 
namespace ConsoleApplication1  
{  
    /// <summary>  
    /// 香蕉工厂  
    /// </summary>  
    public class BananaFactory : FruitAbstractFactory  
    {  
        public BananaFactory()  
        {  
            FruitName = "香蕉";  
        }  
 
        public override string GetCurrentFruit()  
        {  
            return "给你:" + base.FruitName;  
        }  
    }  
} 

4、橘子工厂代码

using System;  
using System.Collections.Generic;  
using System.Text;  
 
namespace ConsoleApplication1  
{  
    /// <summary>  
    /// 橘子工厂  
    /// </summary>  
    public class TangerineFactory : FruitAbstractFactory  
    {  
        public TangerineFactory()  
        {  
            FruitName = "橘子";  
        }  
        public override string GetCurrentFruit()  
        {  
            return "给你:" + base.FruitName;  
        }  
    }  
} 

5、模拟调用代码

using System;  
using System.Collections.Generic;  
using System.Text;  
 
namespace ConsoleApplication1  
{  
    class Program  
    {  
        static void Main(string[] args)  
        {  
            FruitAbstractFactory fruitfactory = new AppleFactory();//苹果工厂  
            Console.WriteLine(fruitfactory.GetCurrentFruit());  
            Console.ReadLine();  
            fruitfactory = new BananaFactory();//香蕉工厂  
            Console.WriteLine(fruitfactory.GetCurrentFruit());  
            Console.ReadLine();  
            fruitfactory = new TangerineFactory();//橘子工厂  
            Console.WriteLine(fruitfactory.GetCurrentFruit());  
            Console.ReadLine();  
        }  
    }  
}