策略模式(Strategy)
1 /* 2 * 在图书销售时,根据不同类型的图书有不同的折扣,计算金额时必须区别对待, 3 * 例如计算机类图书7折,英语类图书6折。应用策略模式,用C#控制台应用程序 4 * 实现该设计。 5 */ 6 using System; 7 using System.Collections.Generic; 8 using System.Linq; 9 using System.Text; 10 11 namespace Strategy 12 { 13 abstract class Strategy 14 { 15 public abstract double AlgorithmInterface(double Money); 16 } 17 class CSStrategy : Strategy 18 { 19 public override double AlgorithmInterface(double Money) 20 { 21 Console.WriteLine("计算机类书打七折。"); 22 return (Money*0.7); 23 } 24 } 25 class EngStrategy : Strategy 26 { 27 public override double AlgorithmInterface(double Money) 28 { 29 Console.WriteLine("英语类书打六折。"); 30 return (Money * 0.6); 31 } 32 } 33 class Context 34 { 35 Strategy strategy; 36 public Context(Strategy strategy) 37 { 38 this.strategy = strategy; 39 } 40 public double GetResult(double Money) 41 { 42 return strategy.AlgorithmInterface(Money); 43 } 44 } 45 class Program 46 { 47 static void Main(string[] args) 48 { 49 Context context; 50 context = new Context(new CSStrategy()); 51 Console.WriteLine("需支付" + context.GetResult(100) + "¥"); 52 53 context = new Context(new EngStrategy()); 54 Console.WriteLine("需支付" + context.GetResult(100) + "¥"); 55 } 56 } 57 }
![字节跳动内推](https://img2020.cnblogs.com/blog/323808/202004/323808-20200415172728571-1992447742.jpg)
找我内推: 字节跳动各种岗位
作者:
ZH奶酪(张贺)
邮箱:
cheesezh@qq.com
出处:
http://www.cnblogs.com/CheeseZH/
*
本文版权归作者和博客园共有,欢迎转载,但未经作者同意必须保留此段声明,且在文章页面明显位置给出原文连接,否则保留追究法律责任的权利。