代表这种模式表示一个作用于某对象结构中的各元素的操作它允许您在其运作时不改变各元素的类情况下定义一个新的操作 ConcreteVisitor2(具体访问者2) This class implements each operation declared by Visitor. Each operation implements a fragment(碎片) of the algorithm defined for the corresponding class of object in the structure. ConcreteVisitor provides the context for the algorithm and stores its local state. This state often(['ɔfən, 'ɔftən, 'ɔ:-] 时常)accumulates (累积)results during(在…的时候) the traversal(遍历) of the structure. (这个类实现了访客所宣布的每个操作。每个操作实现了在...

出现这种模式允许一个对象当其内部状态改变时来改变其行为对象看起来似乎修改了它所属的类 ConcreteStateB(具体状态B) This subclass implements a behaviour associated with a state of the Context. (这个子类实现了一个上下文状态相关的行为。) ConcreteStateA(具体状态A) This subclass implements a behaviour associated with a state of the Context. (这个子类实现了一个上下文状态相关的行为。) State(状态) This class defines an interface for encapsulating the behaviour associated with a particular([pə'tikjulə] 特定的) state of the Context. (这个类定义了一个接口用于封装一个上下文的特定状态相关联的行为。)...

框架推迟某个该模式在一个操作中定义了算法的框架将某些步骤推迟到子类中它允许子类在不改变一个算法的结构的情况下重新定义某些步骤 ConcreteClass(具体类) This class implements the primitive(原始的，简单的) operations to carry out subclass-specific steps of the algorithm. (这个类给执行算法中子类特有的的步骤实现了简单的操作。) AbstractClass(抽像类) This class (a) defines abstract primitive operations that concrete subclasses define to implement steps of an algorithm, and (b) implements a template method defining the skeleton of an algorithm. (这类(a)定义了子类中具体的简单操作的抽象给算法的实施步骤,和(b)实现了...

分离这个模式将从其实现中分离出一个抽象以便这两个可以单独改变 ConcreteImplementorB(具体实现B) This class implements the Implementor interface and defines its concrete implementation. (这个类实现实现者的接口和定义其具体实现。) ConcreteImplementorA(具体实现A) This class implements the Implementor interface and defines its concrete implementation. (这个类实现实现者的接口和定义其具体实现。) RefinedAbstraction(精确抽像接口) This class extends the interface defined by Abstraction. (这个类扩展由抽象定义的接口。) Implementor(实现) This class defines the interface...

分离复杂的表示法这种模式将一个复杂对象的构建从其表示法中分离出来使得同样的构建过程可以创建不同的表示 Product(产品) This class (a) represents(代表) the complex object under construction. ConcreteBuilder builds the product's internal representation and defines the process by which it's assembled, and (b) includes classes that define the constituent(构成的) parts, including interfaces for assembling the parts into the final result. (这类(a)代表了复杂对象正在建设。ConcreteBuilder构建产品的内部表示和定义装配的过程,和(b)包含定义各个组成部分的类,包括为了部件组装成最终的结果的接口。) ConcreteBuilder(...

决定该模式定义了一个创建对象的接口而让子类决定哪个类来实例化它允许一个类延迟实例化到子类 ConcreteCreator(具体创建者) This class overrides the factory method to return an instance of a ConcreteProduct. (这类覆盖了工厂方法返回一个ConcreteProduct的一个实例。) Creator(创建者) This class (a) declares the factory method, which returns an object of type Product. Creator may also define a default implementation of the factory method that returns a default ConcreteProduct object, and (b) may call the factory method to create a Product object. (这类(a)声...

统一的这种模式给一个子系统中的一套接口提供了一个统一的接口它定义了一个更高级别的接口使子系统更容易使用 SubsystemClass7 This class (a) implements subsystem functionality, (b) handles work assigned by the Facade object, and (c) keeps no reference to the facade. (这类(a)实现子系统功能,(b)通过外观对象分配处理工作,并(c)。保持没有到外观的引用) SubsystemClass6 This class (a) implements subsystem functionality, (b) handles work assigned by the Facade object, and (c) keeps no reference to the facade. (这类(a)实现子系统功能,(b)通过外观对象分配处理工作,并(c)。保持没有到外观的引用) SubsystemCl...

违反捕获使具体化恢复这种模式在不破坏封装性的前提下捕获和具体化对象的内部状态以便对象可以恢复最后的状态 Caretaker(看管者) This class is responsible for the memento's safekeeping while never operating on or examining(检查) the contents of a memento. (这个类是负责备忘录的保护,而从来没有操作或检查备忘录的内容。) Memento(备忘录) This class stores internal state of the Originator(起源) object and protects against(反对) access by objects other than the originator. (这类存储发起人对象的内部状态和防止除了发起人之外的对象访问。) Originator(起源) This class creates a memento containing a snapshot(快...