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}
", 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+"
 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 += "
 解码后："+en.GetString(b);
        }
    }
}