C#网络编程之编码解码

　　

　　这里是代码：

 using System;
 using System.Collections.Generic;
 using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
 using System.Windows;
 using System.Windows.Controls;
 using System.Windows.Data;
 using System.Windows.Documents;
 using System.Windows.Input;
 using System.Windows.Media;
 using System.Windows.Media.Imaging;
 using System.Windows.Navigation;
 using System.Windows.Shapes;

 namespace WpfApplication1
 {
     /// <summary>
     /// MainWindow.xaml 的交互逻辑
     /// </summary>
     public partial class MainWindow : Window
     {
         public MainWindow()
         {
             InitializeComponent();
         }

         private void Button_Click_1(object sender, RoutedEventArgs e)
         {
             textBlock1.Text = "";
             EncodingInfo[] n = Encoding.GetEncodings();
             foreach (EncodingInfo item in n)
             {
                 Encoding en = item.GetEncoding();
                 textBlock1.Text += string.Format("编码名称：{0,-18},编码描述：{1}\n", en.HeaderName, en.EncodingName); ;
             }
         }

         private void Button_Click_2(object sender, RoutedEventArgs e)
         {
             textBlock1.Text = "";
             Encoding utf8 = Encoding.UTF8;
             textBlock1.Text = string.Format("编码名称：{0},编码描述：{1}",utf8.HeaderName,utf8.EncodingName);

         }

         private void Button_Click_3(object sender, RoutedEventArgs e)
         {
             textBlock1.Text = "";
             string s = "abcd";
             Encoding unicode = Encoding.Unicode;
             Encoding utf8 = Encoding.UTF8;
             byte[] b = Encoding.Convert(unicode,utf8,unicode.GetBytes(s));
             string s1 = utf8.GetString(b);
             textBlock1.Text = "转码前："+s+"\n 转码后："+s1;
         }

         private void Button_Click_4(object sender, RoutedEventArgs e)
         {
             textBlock1.Text="";
             Encoding en = Encoding.GetEncoding("gb2312");
             //开始编码
             byte[] b = en.GetBytes("abcd");
             //显示编码后的信息
             textBlock1.Text ="abcd编码后："+ BitConverter.ToString(b);
             //解码
             textBlock1.Text += "\n 解码后："+en.GetString(b);
         }
     }
 }