File list (Check if you may need any files):
电子商务系统
............\MyBookShop
............\..........\App_Code
............\..........\........\BusinessLogicHelper
............\..........\........\...................\BookHelper.cs
............\..........\........\...................\UserHelper.cs
............\..........\........\...................\ValidateUtility.cs
............\..........\........\BusinessLogicLayer
............\..........\........\..................\Book.cs
............\..........\........\..................\Cart.cs
............\..........\........\..................\Category.cs
............\..........\........\..................\Chart.cs
............\..........\........\..................\User.cs
............\..........\........\DataAccessHelper
............\..........\........\................\GetSafeData.cs
............\..........\........\................\SQLString.cs
............\..........\........\DataAccessLayer
............\..........\........\...............\Database.cs
............\..........\Bill.aspx
............\..........\Bill.aspx.cs
............\..........\BookAdd.aspx
............\..........\BookAdd.aspx.cs
............\..........\BookDetail.aspx
............\..........\BookDetail.aspx.cs
............\..........\BookList.aspx
............\..........\BookList.aspx.cs
............\..........\BookPics
............\..........\........\Thumbs.db
............\..........\BookStatistics.aspx
............\..........\BookStatistics.aspx.cs
............\..........\CartView.aspx
............\..........\CartView.aspx.cs
............\..........\DB
............\..........\..\MyBookShop.bak
............\..........\..\MyBookShop.sql
............\..........\Default.aspx
............\..........\Default.aspx.cs
............\..........\Images
............\..........\......\Thumbs.db
............\..........\Login.aspx
............\..........\Login.aspx.cs
............\..........\Register.aspx
............\..........\Register.aspx.cs
............\..........\Styles
............\..........\......\Style.css
............\..........\UserControls
............\..........\............\headermenu.ascx
............\..........\............\HeaderMenu.ascx.cs
............\..........\............\HeaderMenu.ascx.resx
............\..........\............\usercheck.ascx
............\..........\............\UserCheck.ascx.cs
............\..........\............\UserCheck.ascx.resx
............\..........\Web.config
............\readme.txt