using?System;
using?System.Collections.Generic;
using?System.Linq;
using?System.Text;
using?System.Security.Cryptography;
using?System.IO;

namespace?softwareTrial
{
????class?DES
????{
????????///?
??
????????///?C#?DES解密方法??
????????///?
??
????????///?待解密的字符串??
????????///?密鑰??
????????///?向量??
????????///?解密后的字符串??
????????public?static?string?DESDecrypt（string?encryptedValue?string?key?string?iv）
????????{
????????????using?（DESCryptoServiceProvider?sa?=
????????????????new?DESCryptoServiceProvider
????????????????{?Key?=?Encoding.UTF8.GetBytes（key）?IV?=?Encoding.UTF8.GetBytes（iv）?}）
????????????{
????????????????using?（ICryptoTransform

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2020-04-19?18:03??softwareTrial\
?????目錄???????????0??2020-04-19?18:03??softwareTrial\.vs\
?????目錄???????????0??2020-04-19?18:03??softwareTrial\.vs\softwareTrial\
?????目錄???????????0??2020-04-19?18:03??softwareTrial\.vs\softwareTrial\v16\
?????文件???????55296??2020-04-20?19:55??softwareTrial\.vs\softwareTrial\v16\.suo
?????目錄???????????0??2020-04-19?18:03??softwareTrial\.vs\softwareTrial\v16\Server\
?????目錄???????????0??2020-04-20?19:55??softwareTrial\.vs\softwareTrial\v16\Server\sqlite3\
?????文件???????????0??2020-04-19?18:03??softwareTrial\.vs\softwareTrial\v16\Server\sqlite3\db.lock
?????文件??????577536??2020-04-20?19:44??softwareTrial\.vs\softwareTrial\v16\Server\sqlite3\storage.ide
?????目錄???????????0??2020-04-20?19:43??softwareTrial\softwareTrial\
?????目錄???????????0??2020-04-19?18:49??softwareTrial\softwareTrial\bin\
?????目錄???????????0??2020-04-20?19:55??softwareTrial\softwareTrial\bin\Debug\
?????文件???????14848??2020-04-20?19:55??softwareTrial\softwareTrial\bin\Debug\softwareTrial.exe
?????文件???????42496??2020-04-20?19:55??softwareTrial\softwareTrial\bin\Debug\softwareTrial.pdb
?????目錄???????????0??2020-04-19?18:49??softwareTrial\softwareTrial\bin\Release\
?????文件????????2739??2020-04-19?18:53??softwareTrial\softwareTrial\DES.cs
?????文件????????6778??2020-04-20?19:43??softwareTrial\softwareTrial\Form1.cs
?????文件????????6304??2020-04-20?18:12??softwareTrial\softwareTrial\Form1.Designer.cs
?????文件????????5817??2020-04-20?18:12??softwareTrial\softwareTrial\Form1.resx
?????目錄???????????0??2020-04-19?18:03??softwareTrial\softwareTrial\obj\
?????目錄???????????0??2020-04-20?19:55??softwareTrial\softwareTrial\obj\Debug\
?????文件????????1423??2020-04-20?13:27??softwareTrial\softwareTrial\obj\Debug\DesignTimeResolveAssemblyReferences.cache
?????文件????????7018??2020-04-22?14:47??softwareTrial\softwareTrial\obj\Debug\DesignTimeResolveAssemblyReferencesInput.cache
?????文件??????????42??2020-04-20?19:55??softwareTrial\softwareTrial\obj\Debug\softwareTrial.csproj.CoreCompileInputs.cache
?????文件?????????910??2020-04-20?19:55??softwareTrial\softwareTrial\obj\Debug\softwareTrial.csproj.FileListAbsolute.txt
?????文件????????1012??2020-04-20?19:55??softwareTrial\softwareTrial\obj\Debug\softwareTrial.csproj.GenerateResource.cache
?????文件?????????424??2020-04-20?19:55??softwareTrial\softwareTrial\obj\Debug\softwareTrial.csprojAssemblyReference.cache
?????文件???????14848??2020-04-20?19:55??softwareTrial\softwareTrial\obj\Debug\softwareTrial.exe
?????文件?????????180??2020-04-20?19:55??softwareTrial\softwareTrial\obj\Debug\softwareTrial.Form1.resources
?????文件???????42496??2020-04-20?19:55??softwareTrial\softwareTrial\obj\Debug\softwareTrial.pdb
?????文件?????????180??2020-04-20?19:55??softwareTrial\softwareTrial\obj\Debug\softwareTrial.Properties.Resources.resources
............此處省略11個文件信息