Design Pattern 4-flyweight

最新推荐文章于 2021-10-26 13:40:23 发布

原创最新推荐文章于 2021-10-26 13:40:23 发布 · 935 阅读

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#class #interface #system #string #null

博客展示了享元模式的代码实现。定义了 flyweight 接口和 Concerateflyweight 类，还创建了 flyweightFactory 类用于管理享元对象。通过工厂获取不同键的享元对象，并输出其哈希码，体现了享元模式的应用。

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using System;

namespace Pattern
{
/// <summary>
/// Summary description for Class1.
/// </summary>
public interface flyweight
{
  void act();
}
public class Concerateflyweight:flyweight
{
  public Concerateflyweight()
  {
  }
  public void act()
  {
   System.Console.WriteLine("Concerate flyweight");
  }
}
public class flyweightFactory
{

  System.Collections.Hashtable ht=new System.Collections.Hashtable();
  public flyweightFactory()
  {
  }
  public flyweight getinstance(string key)
  {
   if (ht[key]==null)
   {
    ht.Add(key,new Concerateflyweight());
   }
   return (flyweight)ht[key];

  }
}
}
    //享元模式
   flyweightFactory factory=new flyweightFactory();
  Console.WriteLine(factory.getinstance("aaa").GetHashCode().ToString());
Console.WriteLine(factory.getinstance("bbb").GetHashCode().ToString());
Console.WriteLine(factory.getinstance("aaa").GetHashCode().ToString());

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