using?System;
using?System.Collections.Generic;
using?System.ComponentModel;
using?System.Data;
using?System.Drawing;
using?System.Linq;
using?System.Text;
using?System.Windows.Forms;
using?System.Web;
using?System.Security.Cryptography;

namespace?UTF_8Code
{
????public?partial?class?Form1?:?Form
????{
????????public?Form1（）
????????{
????????????InitializeComponent（）;
????????}
????????string?UnicodeStr;
????????string?codestyle;
????????string?tempStr;
????????private?void?btnCode_Click（object?sender?EventArgs?e）
????????{
????????????tempStr?=?string.Empty;
????????????if?（txtcodeword.Text?!=?string.Empty）
????????????{
????????????????if?（rbtnUTF8.Checked）
????????????????{
????????????????????codestyle?=?“UTf-8“;
????????????????}
????????????????if?（r