Three tier architecture examples of small programs, bus query software.

Bus
...\BLL
...\...\BLL.csproj
...\...\BusMessage_bll.cs
...\...\Conn_bll.cs
...\...\Properties
...\...\..........\AssemblyInfo.cs
...\...\Way_bll.cs
...\...\bin
...\...\...\Debug
...\...\...\.....\BLL.dll
...\...\...\.....\BLL.pdb
...\...\...\.....\DAL.dll
...\...\...\.....\DAL.pdb
...\...\...\.....\MODEL.dll
...\...\...\.....\MODEL.pdb
...\...\...\Release
...\...\obj
...\...\...\Debug
...\...\...\.....\BLL.csproj.FileListAbsolute.txt
...\...\...\.....\BLL.csprojResolveAssemblyReference.cache
...\...\...\.....\BLL.dll
...\...\...\.....\BLL.pdb
...\...\...\.....\DesignTimeResolveAssemblyReferencesInput.cache
...\...\...\.....\ResolveAssemblyReference.cache
...\...\...\.....\TempPE
...\Bus
...\...\Bus.csproj
...\...\Bus.csproj.user
...\...\Card.ico
...\...\Frm_Bus.cs
...\...\Frm_Bus.resx
...\...\Frm_Conn.cs
...\...\Frm_Conn.resx
...\...\Image
...\...\.....\Card.ico
...\...\.....\Ssms.ico
...\...\Needs
...\...\.....\Bus_Needs.doc
...\...\Program.cs
...\...\Properties
...\...\..........\AssemblyInfo.cs
...\...\..........\Resources.Designer.cs
...\...\..........\Resources.resx
...\...\..........\Settings.Designer.cs
...\...\..........\Settings.settings
...\...\bin
...\...\...\Debug
...\...\...\.....\BLL.dll
...\...\...\.....\BLL.pdb
...\...\...\.....\Bus.exe
...\...\...\.....\Bus.pdb
...\...\...\.....\Bus.vshost.exe
...\...\...\.....\Bus.vshost.exe.manifest
...\...\...\.....\DAL.dll
...\...\...\.....\DAL.pdb
...\...\...\.....\MODEL.dll
...\...\...\.....\MODEL.pdb
...\...\...\Release
...\...\obj
...\...\...\x86
...\...\...\...\Debug
...\...\...\...\.....\Bus.Frm_Bus.resources
...\...\...\...\.....\Bus.Frm_Conn.resources
...\...\...\...\.....\Bus.Properties.Resources.resources
...\...\...\...\.....\Bus.csproj.FileListAbsolute.txt
...\...\...\...\.....\Bus.csproj.GenerateResource.Cache
...\...\...\...\.....\Bus.csprojResolveAssemblyReference.cache
...\...\...\...\.....\Bus.exe
...\...\...\...\.....\Bus.pdb
...\...\...\...\.....\DesignTimeResolveAssemblyReferences.cache
...\...\...\...\.....\DesignTimeResolveAssemblyReferencesInput.cache
...\...\...\...\.....\GenerateResource.read.1.tlog
...\...\...\...\.....\GenerateResource.write.1.tlog
...\...\...\...\.....\ResolveAssemblyReference.cache
...\...\...\...\.....\TempPE
...\...\...\...\.....\......\Properties.Resources.Designer.cs.dll
...\...\...\...\.....\WindowsFormsApplication15.Properties.Resources.resources
...\...\...\...\.....\WindowsFormsApplication15.csproj.FileListAbsolute.txt
...\Bus.sln
...\Bus.suo
...\DAL
...\...\BusMessage_dal.cs
...\...\Conn_dal.cs
...\...\DAL.csproj
...\...\DB
...\...\..\Bus_Data.ldf
...\...\..\Bus_Data.mdf
...\...\..\bus.sql
...\...\..\bus.xls
...\...\..\bus数据.xls
...\...\DBHelper.cs
...\...\Properties
...\...\..........\AssemblyInfo.cs
...\...\Way_dal.cs
...\...\bin
...\...\...\Debug
...\...\...\.....\DAL.dll
...\...\...\.....\DAL.pdb
...\...\...\Release

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