简单工厂练习讲解

 1 using System;
 2 using System.Collections.Generic;
 3 using System.Text;
 4 
 5 namespace SimpleFactoryDemo
 6 {
 7     //创建抽象员工类
 8     public abstract class Employees
 9     {
10         public abstract void ShowInfo();
11     }
12 
13     
14     public class FullTimeEmployees:Employees
15     {
16 
17         public override void ShowInfo()
18         {
19             Console.WriteLine("你好，我是全职员工");
20         }
21     }
22 
23     public class PartTimeEmployees:Employees
24     {
25 
26         public override void ShowInfo()
27         {
28             Console.WriteLine("你好，我是兼职员工");
29         }
30     }
31 
32     public class Factory
33     {
34         public Employees CreateEmployees(int type)
35         {
36             switch (type)
37             {
38                 case 1:
39                     return new FullTimeEmployees();
40                 case 2:
41                     return new PartTimeEmployees();
42                 default:
43                     throw new ArgumentException("未知员工类型");
44             }
45         }
46     }
47 
48     class Program
49     {
50         static void Main(string[] args)
51         {
52             Console.WriteLine("请输入员工类型，1为全职，2为兼职");
53             int input = int.Parse(Console.ReadLine());
54             try
55             {
56                 Factory fac = new Factory();
57                 fac.CreateEmployees(input).ShowInfo();
58             }
59             catch (Exception ex)
60             {
61                 Console.WriteLine(ex.Message);
62             }
63             
64         }
65     }
66 }
67