using?System;
using?System.Collections.Generic;
using?System.Linq;
using?System.Text;
using?System.Threading.Tasks;
using?System.Data;
using?MySql.Data.MySqlClient;
namespace?DBUtil
{
????public??class?Dao
????{
????????//登錄
????????public?static?String?login（String?name）
????????{
????????????MySqlConnection?con?=?DBCon.getCon（）;
????????????con.Open（）;
????????????string?sqlstr?=?“select?pwd?from?user?where?username=‘“?+?name?+?“‘“;

????????????MySqlCommand?cmd?=?new?MySqlCommand（sqlstr?con）;
????????????MySqlDataReader?sdr?=?cmd.ExecuteReader（）;
????????????sdr.Close（）;

????????????String?pwd?=?cmd.ExecuteScalar（）.ToString（）;
????????????con.Close（）;
????????????DBCon.DBclose（con）;
????????????return?pwd;
????????}

????????//修改密碼
????????public?static?in

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件???????1458??2019-12-24?01:09??大作業源碼\CS設計.sln

????..A..H.?????78848??2019-12-31?12:35??大作業源碼\CS設計.v12.suo

?????文件???????9216??2020-01-02?10:04??大作業源碼\DBCon\bin\Release\DBCon.dll

?????文件??????22016??2020-01-02?10:04??大作業源碼\DBCon\bin\Release\DBCon.pdb

?????文件?????455168??2015-11-28?06:54??大作業源碼\DBCon\bin\Release\MySql.Data.dll

?????文件???????9272??2019-12-26?22:10??大作業源碼\DBCon\Dao.cs

?????文件????????577??2019-12-24?01:11??大作業源碼\DBCon\DBCon.cs

?????文件???????2588??2019-12-24?01:08??大作業源碼\DBCon\DBUtil.csproj

?????文件???????6477??2019-12-24?01:01??大作業源碼\DBCon\obj\Debug\DesignTimeResolveAssemblyReferencesInput.cache

?????文件??????????0??2019-12-24?01:01??大作業源碼\DBCon\obj\Debug\TemporaryGeneratedFile_036C0B5B-1481-4323-8D20-8F5ADCB23D92.cs

?????文件??????????0??2019-12-24?01:01??大作業源碼\DBCon\obj\Debug\TemporaryGeneratedFile_5937a670-0e60-4077-877b-f7221da3dda1.cs

?????文件??????????0??2019-12-24?01:01??大作業源碼\DBCon\obj\Debug\TemporaryGeneratedFile_E7A71F73-0F8D-4B9B-B56E-8E70B10BC5D3.cs

?????文件???????9216??2020-01-02?10:04??大作業源碼\DBCon\obj\Release\DBCon.dll

?????文件??????22016??2020-01-02?10:04??大作業源碼\DBCon\obj\Release\DBCon.pdb

?????文件????????339??2019-12-26?16:27??大作業源碼\DBCon\obj\Release\DBUtil.csproj.FileListAbsolute.txt

?????文件??????11288??2019-12-24?01:09??大作業源碼\DBCon\obj\Release\DBUtil.csprojResolveAssemblyReference.cache

?????文件???????6558??2019-12-24?01:05??大作業源碼\DBCon\obj\Release\DesignTimeResolveAssemblyReferencesInput.cache

?????文件??????????0??2019-12-24?01:01??大作業源碼\DBCon\obj\Release\TemporaryGeneratedFile_036C0B5B-1481-4323-8D20-8F5ADCB23D92.cs

?????文件??????????0??2019-12-24?01:01??大作業源碼\DBCon\obj\Release\TemporaryGeneratedFile_5937a670-0e60-4077-877b-f7221da3dda1.cs

?????文件??????????0??2019-12-24?01:01??大作業源碼\DBCon\obj\Release\TemporaryGeneratedFile_E7A71F73-0F8D-4B9B-B56E-8E70B10BC5D3.cs

?????文件???????1334??2019-12-24?01:01??大作業源碼\DBCon\Properties\AssemblyInfo.cs

?????文件????????387??2019-12-26?21:28??大作業源碼\login1\about.cs

?????文件???????4959??2019-12-26?21:28??大作業源碼\login1\about.Designer.cs

?????文件???????5817??2019-12-26?21:28??大作業源碼\login1\about.resx

?????文件???????1042??2019-12-05?21:18??大作業源碼\login1\addBuyOrder.cs

?????文件??????12013??2019-12-05?21:18??大作業源碼\login1\addBuyOrder.Designer.cs

?????文件???????5817??2019-12-05?21:18??大作業源碼\login1\addBuyOrder.resx

?????文件???????2790??2019-12-26?19:44??大作業源碼\login1\addShop.cs

?????文件??????10998??2019-12-26?19:07??大作業源碼\login1\addShop.Designer.cs

?????文件???????6737??2019-12-26?19:07??大作業源碼\login1\addShop.resx

............此處省略108個文件信息