C#网络编程之编码解码

　　这里是代码：
 1 using System;
 2 using System.Collections.Generic;
 3 using System.Linq;
 4 using System.Text;
 5 using System.Threading.Tasks;
 6 using System.Windows;
 7 using System.Windows.Controls;
 8 using System.Windows.Data;
 9 using System.Windows.Documents;
10 using System.Windows.Input;
11 using System.Windows.Media;
12 using System.Windows.Media.Imaging;
13 using System.Windows.Navigation;
14 using System.Windows.Shapes;
15 
16 namespace WpfApplication1
17 {
18     /// <summary>
19     /// MainWindow.xaml 的交互逻辑
20     /// </summary>
21     public partial class MainWindow : Window
22     {
23         public MainWindow()
24         {
25             InitializeComponent();
26         }
27 
28         private void Button_Click_1(object sender, RoutedEventArgs e)
29         {
30             textBlock1.Text = "";
31             EncodingInfo[] n = Encoding.GetEncodings();
32             foreach (EncodingInfo item in n)
33             {
34                 Encoding en = item.GetEncoding();
35                 textBlock1.Text += string.Format("编码名称：{0,-18},编码描述：{1}
", en.HeaderName, en.EncodingName); ;
36             }
37         }
38 
39         private void Button_Click_2(object sender, RoutedEventArgs e)
40         {
41             textBlock1.Text = "";
42             Encoding utf8 = Encoding.UTF8;
43             textBlock1.Text = string.Format("编码名称：{0},编码描述：{1}",utf8.HeaderName,utf8.EncodingName);
44 
45         }
46 
47         private void Button_Click_3(object sender, RoutedEventArgs e)
48         {
49             textBlock1.Text = "";
50             string s = "abcd";
51             Encoding unicode = Encoding.Unicode;
52             Encoding utf8 = Encoding.UTF8;
53             byte[] b = Encoding.Convert(unicode,utf8,unicode.GetBytes(s));
54             string s1 = utf8.GetString(b);
55             textBlock1.Text = "转码前："+s+"
 转码后："+s1;
56         }
57 
58         private void Button_Click_4(object sender, RoutedEventArgs e)
59         {
60             textBlock1.Text="";
61             Encoding en = Encoding.GetEncoding("gb2312");
62             //开始编码
63             byte[] b = en.GetBytes("abcd");
64             //显示编码后的信息
65             textBlock1.Text ="abcd编码后："+ BitConverter.ToString(b);
66             //解码
67             textBlock1.Text += "
 解码后："+en.GetString(b);
68         }
69     }
70 }