C#图书管理系统（源码+数据库）

winform sql server

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Data.SqlClient;

namespace bookstore
{
    class CONN
    {
        public static SqlConnection Myconn（）
        {
            return new SqlConnection（“Data Source = （local）; Initial Catalog = BOOKSTORE; Integrated Security = True; User ID = sa; Password = 123456“）;
        }
    }
}

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----
     目录           0  2021-03-20 18:33  bookstore-master\
     目录           0  2021-03-20 18:33  bookstore-master\.vs\
     目录           0  2021-03-20 18:33  bookstore-master\.vs\bookstore\
     目录           0  2021-03-20 18:33  bookstore-master\.vs\bookstore\v16\
     文件      172544  2021-03-20 22:35  bookstore-master\.vs\bookstore\v16\.suo
     目录           0  2021-03-20 18:33  bookstore-master\Backup\
     目录           0  2021-03-20 18:33  bookstore-master\Backup\bookstore\
     文件         388  2018-03-02 02:58  bookstore-master\Backup\bookstore\CONN.cs
     文件         470  2018-03-02 02:58  bookstore-master\Backup\bookstore\Program.cs
     目录           0  2021-03-20 18:33  bookstore-master\Backup\bookstore\Properties\
     文件        1334  2018-03-02 02:58  bookstore-master\Backup\bookstore\Properties\AssemblyInfo.cs
     文件        2797  2018-03-02 02:58  bookstore-master\Backup\bookstore\Properties\Resources.Designer.cs
     文件        5496  2018-03-02 02:58  bookstore-master\Backup\bookstore\Properties\Resources.resx
     文件        2261  2018-03-02 02:58  bookstore-master\Backup\bookstore\Properties\Settings.Designer.cs
     文件        1696  2018-03-02 02:58  bookstore-master\Backup\bookstore\Properties\Settings.settings
     文件         644  2018-03-02 02:58  bookstore-master\Backup\bookstore\app.config
     文件       13602  2018-03-02 02:58  bookstore-master\Backup\bookstore\bookstore.csproj
     文件         246  2018-03-02 02:58  bookstore-master\Backup\bookstore\bookstore.csproj.user
     文件       29788  2018-03-02 02:58  bookstore-master\Backup\bookstore\主界面.Designer.cs
     文件        6716  2018-03-02 02:58  bookstore-master\Backup\bookstore\主界面.cs
     文件       65618  2018-03-02 02:58  bookstore-master\Backup\bookstore\主界面.resx
     文件        4579  2018-03-02 02:58  bookstore-master\Backup\bookstore\会员信息查看.Designer.cs
     文件        1141  2018-03-02 02:58  bookstore-master\Backup\bookstore\会员信息查看.cs
     文件        5908  2018-03-02 02:58  bookstore-master\Backup\bookstore\会员信息查看.resx
     文件       17402  2018-03-02 02:58  bookstore-master\Backup\bookstore\会员删除.Designer.cs
     文件        6635  2018-03-02 02:58  bookstore-master\Backup\bookstore\会员删除.cs
     文件        5908  2018-03-02 02:58  bookstore-master\Backup\bookstore\会员删除.resx
     文件       16331  2018-03-02 02:58  bookstore-master\Backup\bookstore\会员更改.Designer.cs
     文件        7582  2018-03-02 02:58  bookstore-master\Backup\bookstore\会员更改.cs
     文件        5695  2018-03-02 02:58  bookstore-master\Backup\bookstore\会员更改.resx
     文件       11103  2018-03-02 02:58  bookstore-master\Backup\bookstore\会员查询.Designer.cs
............此处省略237个文件信息