Abstract Factory(抽象工厂) 2
因为上次没给代码,再次给Aragorn_Elessar 等朋友道个歉,
我这里的环境是.net 1.1 用c#描述:
问题先描述一下:
我要一条鱼,现在地方有三个可以让我选择,一、菜市场;二、花鸟市场;三、钓鱼场;
现在先定义鱼的类
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string fname;//鱼的名称
public Fish(string fname)
{
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
.......
}
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}
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![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
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然后定义抽象工厂类
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public abstract Fish getFish()
{
}
}
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具体工厂:
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public override Fish getFish()
{
.....
//返回鱼1
return new Fish("鱼1");
}
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}
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public override Fish getFish()
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{
.....
//返回鱼2
return new Fish("鱼2");
}
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
}
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{
.....
//返回鱼3
return new Fish("鱼3");
}
}
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还有一个得到工厂的类
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![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gif)
![](http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif)
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//具体怎么选择就不说了
//返回
return 某个Factory ;
}
}
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我要一条鱼:
Factory oneFactory =GetFactory.setFactory("取得某个工厂的参数");//可以配置在配置文件中。
Fish fish=oneFactory .getFish();//某个工厂就已经决定某条鱼了。
如果再扩展的话,就把Fish变成抽象的,具体的有Fish1,Fish2,Fish3.
写的比较仓促,刚刚起来,按自己记忆中的写了,也没仔细想,当然仅仅是为了得到一条鱼而用模式工厂有点傻,这个例子不好,只是为了说明这么个写法,谢谢你们的批评,至于抽象工厂是专门为了解决什么而存在,我个人的意见是能解决什么问题就解决什么问题,也不局限与“两个产品更新换代绑定”,你觉得呢,欢迎再给我提点建议,:)