Describe: Three codes, purchase information, etc., you can learn under the three-tier structure with database integrity

File list(Click to check if it's the file you need, and recomment it at the bottom):
  源码\dotNetFx35setup.exe
  ....\Stock\BLL\AssemblyInfo.cs
  ....\.....\...\bin\Debug\MySql.Data.dll
  ....\.....\...\...\.....\Stock.BLL.dll
  ....\.....\...\...\.....\Stock.BLL.pdb
  ....\.....\...\...\.....\Stock.DAL.dll
  ....\.....\...\...\.....\Stock.DAL.pdb
  ....\.....\...\...\.....\Stock.DBUtility.dll
  ....\.....\...\...\.....\Stock.DBUtility.pdb
  ....\.....\...\...\.....\Stock.Model.dll
  ....\.....\...\...\.....\Stock.Model.pdb
  ....\.....\...\BLL.csproj
  ....\.....\...\BLL.csproj.user
  ....\.....\...\customerinfo.cs
  ....\.....\...\emplyee.cs
  ....\.....\...\enlist.cs
  ....\.....\...\equipment.cs
  ....\.....\...\indent.cs
  ....\.....\...\invoice.cs
  ....\.....\...\obj\Debug\BLL.csproj.FileListAbsolute.txt
  ....\.....\...\...\.....\Refactor\Stock.BLL.dll
  ....\.....\...\...\.....\ResolveAssemblyReference.cache
  ....\.....\...\...\.....\Stock.BLL.dll
  ....\.....\...\...\.....\Stock.BLL.pdb
  ....\.....\...\providerinfo.cs
  ....\.....\...\remit.cs
  ....\.....\...\sub_success.cs
  ....\.....\...\success.cs
  ....\.....\...\type.cs
  ....\.....\DAL\AssemblyInfo.cs
  ....\.....\...\bin\Debug\MySql.Data.dll
  ....\.....\...\...\.....\Stock.DAL.dll
  ....\.....\...\...\.....\Stock.DAL.pdb
  ....\.....\...\...\.....\Stock.DBUtility.dll
  ....\.....\...\...\.....\Stock.DBUtility.pdb
  ....\.....\...\...\.....\Stock.Model.dll
  ....\.....\...\...\.....\Stock.Model.pdb
  ....\.....\...\customerinfo.cs
  ....\.....\...\DAL.csproj
  ....\.....\...\DAL.csproj.user
  ....\.....\...\emplyee.cs
  ....\.....\...\enlist.cs
  ....\.....\...\equipment.cs
  ....\.....\...\indent.cs
  ....\.....\...\invoice.cs
  ....\.....\...\obj\Debug\DAL.csproj.FileListAbsolute.txt
  ....\.....\...\...\.....\Refactor\Stock.DAL.dll
  ....\.....\...\...\.....\ResolveAssemblyReference.cache
  ....\.....\...\...\.....\Stock.DAL.dll
  ....\.....\...\...\.....\Stock.DAL.pdb
  ....\.....\...\providerinfo.cs
  ....\.....\...\remit.cs
  ....\.....\...\sub_success.cs
  ....\.....\...\success.cs
  ....\.....\...\type.cs
  ....\.....\.BUtility\AssemblyInfo.cs
  ....\.....\.........\bin\Debug\MySql.Data.dll
  ....\.....\.........\...\.....\Stock.DBUtility.dll
  ....\.....\.........\...\.....\Stock.DBUtility.pdb
  ....\.....\.........\CommandInfo.cs
  ....\.....\.........\DbHelperMySQL.cs
  ....\.....\.........\DbHelperOleDb.cs
  ....\.....\.........\DbHelperOra.cs
  ....\.....\.........\DbHelperSQL.cs
  ....\.....\.........\DbHelperSQL2.cs
  ....\.....\.........\DbHelperSQLP.cs
  ....\.....\.........\DBUtility.csproj
  ....\.....\.........\DBUtility.csproj.user
  ....\.....\.........\DESEncrypt.cs
  ....\.....\.........\obj\Debug\DBUtility.csproj.FileListAbsolute.txt
  ....\.....\.........\...\.....\Refactor\Stock.DBUtility.dll
  ....\.....\.........\...\.....\ResolveAssemblyReference.cache
  ....\.....\.........\...\.....\Stock.DBUtility.dll
  ....\.....\.........\...\.....\Stock.DBUtility.pdb
  ....\.....\.........\OracleHelper.cs
  ....\.....\.........\PubConstant.cs
  ....\.....\.........\SQLHelper.cs
  ....\.....\Lib\LTP.Accounts.dll
  ....\.....\...\LtpPageControl.dll
  ....\.....\...\Maticsoft.DBUtility.dll
  ....\.....\...\Microsoft.Web.UI.WebControls.dll
  ....\.....\...\MySql.Data.dll
  ....\.....\Model\AssemblyInfo.cs
  ....\.....\.....\bin\Debug\Stock.Model.dll
  ....\.....\.....\...\.....\Stock.Model.pdb
  ....\.....\.....\customerinfo.cs
  ....\.....\.....\emplyee.cs
  ....\.....\.....\enlist.cs
  ....\.....\.....\equipment.cs
  ....\.....\.....\indent.cs
  ....\.....\.....\invoice.cs
  ....\.....\.....\Model.csproj
  ....\.....\.....\Model.csproj.user
  ....\.....\.....\obj\Debug\Model.csproj.FileListAbsolute.txt
  ....\.....\.....\...\.....\Refactor\Stock.Model.dll
  ....\.....\.....\...\.....\Stock.Model.dll
  ....\.....\.....\...\.....\Stock.Model.pdb
  ....\.....\.....\providerinfo.cs
  ....\.....\.....\remit.cs
  ....\.....\.....\sub_success.cs

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