1 using System;
 2 using System.Collections.Generic;
 3 using System.Linq;
 4 using System.Text;
 5 using System.Threading.Tasks;
 6
 7 namespace DesignMode_TemplateMethod
 8 {
 9     public abstract class CookVegetable
10     {
11         // 模板方法，不要把模版方法定义为Virtual或abstract方法，避免被子类重写，防止更改流程的执行顺序
12         public void CookVegetableTemplate()
13         {
14             Console.WriteLine("炒蔬菜的模板方法");
15             PourOil();
16             HeatOil();
17             PourVegetable();//放入何种蔬菜由具体的子类决定
18             PourSalt();
19             StirFry();
20         }
21
22         public void PourOil()
23         {
24             Console.WriteLine("往锅里倒油");
25         }
26         public void HeatOil()
27         {
28             Console.WriteLine("把油加热");
29         }
30
31         // 油热了之后倒蔬菜下去，具体哪种蔬菜由子类决定
32         public abstract void PourVegetable();
33
34         public void PourSalt()
35         {
36             Console.WriteLine("放入精盐");
37         }
38         public void StirFry()
39         {
40             Console.WriteLine("翻炒");
41         }
42     }
43
44     public class CookCabbage : CookVegetable
45     {
46         public override void PourVegetable()
47         {
48             Console.WriteLine("倒入大白菜");
49
50         }
51     }
52     public class CookPotato : CookVegetable
53     {
54         public override void PourVegetable()
55         {
56             Console.WriteLine("倒入马铃薯");
57         }
58     }
59     class Program
60     {
61         static void Main(string[] args)
62         {
63             CookPotato cookPotato = new CookPotato();
64             CookCabbage cookCabbage = new CookCabbage();
65
66             cookPotato.CookVegetableTemplate();
67             Console.WriteLine("********************");
68             cookCabbage.CookVegetableTemplate();
69
70             Console.ReadLine();
71         }
72     }
73 }