设计模式---翻译器模式

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
using System;
using System.Collections.Generic;
using System.Text;

namespace ConsoleApplication1
{
abstract class Expretion
{
public void Translate(Words w)
{
string s = w.MyWords.Substring(0, 1);
w.MyWords = w.MyWords.Substring(2);
Excute(s);
}

public abstract void Excute(string s);
}

class EnglishExpretion : Expretion
{
public override void Excute(string s)
{
switch (s)
{
case "e":
Console.WriteLine("对方说的英语");
break;
}
}
}

class GermanExpretion : Expretion
{
public override void Excute(string s)
{
switch (s)
{
case "g":
Console.WriteLine("对方说的德语");
break;
}
}
}

class Words
{
private string words;

public string MyWords
{
get { return words; }
set { words = value; }
}
}

class Client
{
public static void Main()
{
Words w = new Words();
w.MyWords = "e g e e g ";
Expretion e = null;
while (w.MyWords.Length > 0)
{
switch (w.MyWords.Substring(0, 1))
{
case "e":
e = new EnglishExpretion();
break;
case "g":
e = new GermanExpretion();
break;
}

e.Translate(w);
}

Console.Read();
}
}
}