设计模式描述了一个出现在特定设计语境中的设计再现问题,并为它的解决方案提供了一个经过充分验证的通用方案,不同的设计模式关注解决不同的问题。例如,抽象工厂模式提供一个接口,可以创建一系列相关或相互依赖的对象。而无须指定它们具体的类,这是一种(请作答此空)模式;( )模式将类的抽象部分和它的实现部分分离出来,使它们可以独立变化,这属于( )模式;( )模式将一个请求封装为一个对象,从而可用不同的请求对客户进行参数化,将请求排队或记录请求日志并支持可撤销的操作。
- A.组合型
- B.结构型
- C.行为型
- D.创建型
正确答案及解析
正确答案
解析
设计模式包括创建型、结构型、行为型3大类别。抽象工厂模式属于创建型设计模式。桥接模式属于结构型设计模式。
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