c#加密解密 加密后字符为特殊字符

c#加密解密 加密后字符为特殊字符

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;

namespace testJM
{
    public partial class Form1 : Form
    {
        public Form1（）
        {
            InitializeComponent（）;
        }
        private string res = ““;
        private void button1_Click（object sender EventArgs e）
        {
            JMUtil jm = new JMUtil（）;
            if （this.textBox1.Text == ““）
            {
                MessageBox.Show（“请输入字符串“）;
                return;
            }
            string str=jm.JiaMi（this.textBox1.Text）;
            this.label4.Text = str;
            res = str;
        }

        private void button2_Click（obje

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----

     文件      11776  2013-11-05 21:47  testJM\testJM\bin\Debug\testJM.exe

     文件      32256  2013-11-05 21:47  testJM\testJM\bin\Debug\testJM.pdb

     文件      11600  2013-11-05 21:47  testJM\testJM\bin\Debug\testJM.vshost.exe

     文件        490  2010-03-17 22:39  testJM\testJM\bin\Debug\testJM.vshost.exe.manifest

     文件        999  2013-11-05 21:45  testJM\testJM\Form1.cs

     文件       5775  2013-11-05 21:36  testJM\testJM\Form1.Designer.cs

     文件       5817  2013-11-05 21:36  testJM\testJM\Form1.resx

     文件       5537  2013-11-05 21:47  testJM\testJM\JMutil.cs

     文件       2152  2013-11-05 18:15  testJM\testJM\obj\x86\Debug\DesignTimeResolveAssemblyReferences.cache

     文件       6271  2013-11-05 21:47  testJM\testJM\obj\x86\Debug\DesignTimeResolveAssemblyReferencesInput.cache

     文件        284  2013-11-05 21:36  testJM\testJM\obj\x86\Debug\GenerateResource.read.1.tlog

     文件        662  2013-11-05 21:36  testJM\testJM\obj\x86\Debug\GenerateResource.write.1.tlog

     文件        844  2013-11-05 21:47  testJM\testJM\obj\x86\Debug\testJM.csproj.FileListAbsolute.txt

     文件      11776  2013-11-05 21:47  testJM\testJM\obj\x86\Debug\testJM.exe

     文件        180  2013-11-05 21:36  testJM\testJM\obj\x86\Debug\testJM.Form1.resources

     文件      32256  2013-11-05 21:47  testJM\testJM\obj\x86\Debug\testJM.pdb

     文件        180  2013-11-05 21:30  testJM\testJM\obj\x86\Debug\testJM.Properties.Resources.resources

     文件        487  2013-11-05 18:15  testJM\testJM\Program.cs

     文件       1354  2013-11-05 18:15  testJM\testJM\Properties\AssemblyInfo.cs

     文件       2860  2013-11-05 18:15  testJM\testJM\Properties\Resources.Designer.cs

     文件       5612  2013-11-05 18:15  testJM\testJM\Properties\Resources.resx

     文件       1089  2013-11-05 18:15  testJM\testJM\Properties\Settings.Designer.cs

     文件        249  2013-11-05 18:15  testJM\testJM\Properties\Settings.settings

     文件       3708  2013-11-05 18:50  testJM\testJM\testJM.csproj

     文件        860  2013-11-05 18:15  testJM\testJM.sln

    ..A..H.      9216  2013-11-05 18:15  testJM\testJM.suo

     目录          0  2013-11-05 21:49  testJM\testJM\obj\x86\Debug\TempPE

     目录          0  2013-11-05 21:49  testJM\testJM\obj\x86\Debug

     目录          0  2013-11-05 21:49  testJM\testJM\bin\Debug

     目录          0  2013-11-05 21:49  testJM\testJM\obj\x86

............此处省略8个文件信息