1 using System;
 2 using System.Collections.Generic;
 3 using System.Text;
 4 
 5 namespace FlyWeightPatternSam
 6 {
 7     public abstract class Employer
 8     {
 9         protected string _company = "COMPANY";//公共属性
10         protected string _companyAddress = "ADDRESS";//公共属性
11 
12         public abstract void SetPropertity(string name,string age);
13         public abstract void ShowInformation();
14 
15     }
16 }
17 
18 using System;
19 using System.Collections.Generic;
20 using System.Text;
21 
22 namespace FlyWeightPatternSam
23 {
24     public class EmployerA:Employer 
25     {
26         private string _name;//特有属性
27         private string _age;
28         private string _id="01";
29         public override void SetPropertity( string name, string age)
30         {//传递相应的参数来赋值
31             //throw new Exception("The method or operation is not implemented.");
32             this._age = age;
33            
34             this._name = name;
35         }
36 
37         public override void ShowInformation()
38         {
39             //throw new Exception("The method or operation is not implemented.");
40             Console.WriteLine(_company +"  "+_companyAddress +"  "+_name +"  "+_id +"   "+_age );
41         }
42     }
43 }
44 

 1 using System;
 2 using System.Collections.Generic;
 3 using System.Text;
 4 
 5 namespace FlyWeightPatternSam
 6 {
 7     public class FlyweightFactory
 8     {
 9         private static readonly FlyweightFactory instance=new FlyweightFactory();
10         System.Collections.Generic.Dictionary<string, Employer> dictionary = new Dictionary<string, Employer>();
11 
12         private FlyweightFactory() 
13         {
14             dictionary.Add("01",new EmployerA());
15             dictionary.Add("02",new EmployerB());
16             dictionary.Add("03",new EmployerC());
17         }
18         
19         public static  FlyweightFactory Instance
20         {
21             get
22             {
23                 return instance;
24             }
25         }
26 
27         public Employer GetEmployer(string str) 
28         {
29             Employer employer = null ;
30             try
31             {
32                 employer = dictionary[str] as Employer;    
33             }
34             catch(Exception ex)
35             {
36                 Console.WriteLine(ex.Message);
37             }
38             return employer;
39         }
40     }
41 }
42 

代码