Template Method

最新推荐文章于 2024-12-17 15:34:12 发布

原创最新推荐文章于 2024-12-17 15:34:12 发布 · 247 阅读

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#class #string #框架 #user

本文通过具体示例介绍模板方法设计模式的基本概念及其应用。该模式定义了一个算法骨架，允许子类提供特定步骤的实现而不改变算法结构。文章展示了如何通过抽象基类定义算法骨架，并由具体子类实现细节。

using System; using System.Collections.Generic; using System.Linq; using System.Text; //Factyro Method模式将实际要创建的物件推迟至子类中决定，而 Template Method模式则是将流程框架的实作留待子类来解决 namespace Template { class Program { static void Main(string[] args) { AbstractClass aA = new ConcreteClassA(); aA.TemplateMethod(); AbstractClass aB = new ConcreteClassB(); aB.TemplateMethod(); // Wait for user Console.ReadKey(); } } /// <summary> /// The 'AbstractClass' abstract class /// </summary> abstract class AbstractClass { public abstract void PrimitiveOperation1(); public abstract void PrimitiveOperation2(); // The "Template method" public void TemplateMethod() { PrimitiveOperation1(); PrimitiveOperation2(); Console.WriteLine(""); } } /// <summary> /// A 'ConcreteClass' class /// </summary> class ConcreteClassA : AbstractClass { public override void PrimitiveOperation1() { Console.WriteLine("ConcreteClassA.PrimitiveOperation1()");//if this sentence is new xxx() then this is Factory Method } public override void PrimitiveOperation2() { Console.WriteLine("ConcreteClassA.PrimitiveOperation2()"); } } /// <summary> /// A 'ConcreteClass' class /// </summary> class ConcreteClassB : AbstractClass { public override void PrimitiveOperation1() { Console.WriteLine("ConcreteClassB.PrimitiveOperation1()"); } public override void PrimitiveOperation2() { Console.WriteLine("ConcreteClassB.PrimitiveOperation2()"); } } }