Unicode与中文互转

直接上代码吧，没什么好说的，资料来自互联网。

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Text.RegularExpressions;
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 Unic
{
    /// <summary>
    /// MainWindow.xaml 的交互逻辑
    /// </summary>
    public partial class MainWindow : Window
    {
        public MainWindow()
        {
            InitializeComponent();
        }

        private void button_Click(object sender, RoutedEventArgs e)
        {
            string s = this.textBox.Text;
            this.textBox1.Text = UnicodeToGB(s);
        }
        /// <summary>
        /// Unicode转中文
        /// </summary>
        /// <param name="text"></param>
        /// <returns></returns>
        public static string UnicodeToGB(string text)
        {
            System.Text.RegularExpressions.MatchCollection mc = System.Text.RegularExpressions.Regex.Matches(text, "\\\\u([\\w]{4})");
            if (mc != null && mc.Count > 0)
            {
                foreach (System.Text.RegularExpressions.Match m2 in mc)
                {
                    string v = m2.Value;
                    string word = v.Substring(2);
                    byte[] codes = new byte[2];
                    int code = Convert.ToInt32(word.Substring(0, 2), 16);
                    int code2 = Convert.ToInt32(word.Substring(2), 16);
                    codes[0] = (byte)code2;
                    codes[1] = (byte)code;
                    text = text.Replace(v, Encoding.Unicode.GetString(codes));
                }
            }
            else
            {

            }
            return text;
        }
        /// <summary>
        /// 中文转Unicode
        /// </summary>
        /// <param name="str"></param>
        /// <returns></returns>
        public static string unicode_js_0(string str)
        {
            string outStr = "";
            string a = "";
            if (!string.IsNullOrEmpty(str))
            {
                for (int i = 0; i < str.Length; i++)
                {
                    if (Regex.IsMatch(str[i].ToString(), @"[\u4e00-\u9fa5]")) { outStr += "\\u" + ((int)str[i]).ToString("x"); }
                    else { outStr += str[i]; }
                }
            }
            return outStr;
        }

        private void button1_Click(object sender, RoutedEventArgs e)
        {
            string s = this.textBox.Text;
            this.textBox1.Text = unicode_js_0(s);
        }
    }
}