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資源簡介

該系統工作流程:超市工作人員在管理商品時，用戶對商品的價格，折扣等進行管理，并進行增刪改。(1)該管理軟件將對商品進行管理和統計,對產品的價格進行錄入管理和統計;(2)根據需要對商品名稱、價格、是否打折等進行查詢，并能顯示詳細信息；(3)為用戶提供賬號管理工具，以便用戶對賬號進行管理，具體為登錄修改用戶密碼；(4)提供商品的增加，刪除，修改，對商品進行管理，還可以分類查看打折商品和原價商品。數據庫中需要存儲的數據:用戶登錄名、密碼、商品名稱、價格、是否打折、商品類別、打折價格等。

資源截圖

代碼片段和文件信息 

using?System;
using?System.Collections.Generic;
using?System.Linq;
using?System.Text;
using?System.Threading.Tasks;
using?System.Data;
using?System.Data.SqlClient;


namespace?supermarket
{
????public?class?DBHelper
????{
????????private?string?connString?=?@“Data?Source=（local）;Initial?Catalog=SuperMarket;User?ID=sa;Password=123456“;
????????private?SqlConnection?connection;

????????//連接對象
????????public?SqlConnection?Connection
????????{
????????????get?
????????????{
????????????????if?（connection==null）
????????????????{
????????????????????connection?=?new?SqlConnection（connString）;
????????????????}
????????????????return?connection;
????????????}
????????}
????????//打開數據連接
????????public?void?OpenConnection（）
????????{
????????????if?（Connection.State?==?ConnectionState.Closed）
????????????{
????????????????Connection.Open（）;
????????????}
????????????else?if?（Connection.State==ConnectionState.Broken）
????????????{
????????????????Connection.Close（）;
????????????????Connection.Open（）;
????????????}
????????}

????????//關閉數據庫
????????public?void?CloseConnection（）
????????{
????????????if?（Connection.State?==ConnectionState.Open?||?Connection.State==ConnectionState.Broken）
????????????{
????????????????Connection.Close（）;
????????????}
????????}
????}
}

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

????..A..H.?????64512??2020-12-14?19:39??sm\supermarket\.vs\supermarket\v16\.suo

?????文件??????????0??2020-12-14?18:47??sm\supermarket\.vs\supermarket\v16\Server\sqlite3\db.lock

?????文件?????577536??2020-12-14?19:17??sm\supermarket\.vs\supermarket\v16\Server\sqlite3\storage.ide

?????文件?????186880??2020-12-16?21:51??sm\supermarket\supermarket\bin\Debug\supermarket.exe

?????文件??????83456??2020-12-16?21:51??sm\supermarket\supermarket\bin\Debug\supermarket.pdb

?????文件??????11600??2020-12-19?12:38??sm\supermarket\supermarket\bin\Debug\supermarket.vshost.exe

?????文件????????490??2019-03-19?12:46??sm\supermarket\supermarket\bin\Debug\supermarket.vshost.exe.manifest

?????文件???????1363??2020-12-15?18:02??sm\supermarket\supermarket\DBHelper.cs

?????文件????????367??2020-12-11?23:26??sm\supermarket\supermarket\frmAbout.cs

?????文件???????3249??2020-12-11?23:26??sm\supermarket\supermarket\frmAbout.Designer.cs

?????文件???????5817??2020-12-11?23:26??sm\supermarket\supermarket\frmAbout.resx

?????文件???????3779??2020-12-15?19:26??sm\supermarket\supermarket\frmChangePwd.cs

?????文件???????6110??2020-12-11?23:26??sm\supermarket\supermarket\frmChangePwd.Designer.cs

?????文件???????5817??2020-12-11?23:26??sm\supermarket\supermarket\frmChangePwd.resx

?????文件???????7882??2020-12-16?19:01??sm\supermarket\supermarket\frmEditCommodity.cs

?????文件???????9789??2020-12-13?19:04??sm\supermarket\supermarket\frmEditCommodity.Designer.cs

?????文件???????5817??2020-12-13?19:04??sm\supermarket\supermarket\frmEditCommodity.resx

?????文件???????3014??2020-12-15?18:36??sm\supermarket\supermarket\frmLogin.cs

?????文件???????6330??2020-12-11?22:43??sm\supermarket\supermarket\frmLogin.Designer.cs

?????文件???????5817??2020-12-11?22:43??sm\supermarket\supermarket\frmLogin.resx

?????文件???????6136??2020-12-15?17:59??sm\supermarket\supermarket\frmSuperMarket.cs

?????文件??????10107??2020-12-14?19:13??sm\supermarket\supermarket\frmSuperMarket.Designer.cs

?????文件???????6212??2020-12-14?19:13??sm\supermarket\supermarket\frmSuperMarket.resx

?????文件???????1454??2020-12-16?19:30??sm\supermarket\supermarket\frmSuperMarketMain.cs

?????文件???????6759??2020-12-16?19:30??sm\supermarket\supermarket\frmSuperMarketMain.Designer.cs

?????文件???????6015??2020-12-16?19:30??sm\supermarket\supermarket\frmSuperMarketMain.resx

?????文件???????5420??2020-12-15?18:00??sm\supermarket\supermarket\obj\x86\Debug\DesignTimeResolveAssemblyReferences.cache

?????文件???????7135??2020-12-17?23:43??sm\supermarket\supermarket\obj\x86\Debug\DesignTimeResolveAssemblyReferencesInput.cache

?????文件???????4420??2020-12-19?12:38??sm\supermarket\supermarket\obj\x86\Debug\supermarket.csproj.FileListAbsolute.txt

?????文件???????1676??2020-12-16?19:30??sm\supermarket\supermarket\obj\x86\Debug\supermarket.csproj.GenerateResource.Cache

............此處省略52個文件信息

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