sln文件基本上只是介绍性文件，包含一些工程的属性。其中
Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "TRY", "TRY\TRY.csproj", "{DC11C4A3-BEE4-4E04-87E4-AAA5617F38BB}"
这个语句将具体的内容指向了.csproj,这就有了进一步的工程信息。以下是csproj的信息。
再讲具体我就不懂了。以前做过一个工程软件，涉及到了一些类似的概念，个人以为这些工程文件其实就是保存工程的一些属性及文件指向。至于具体有些什么内容，就需要对工程的要求进行提取、抽象、封装了。比如要放在.csproj里，还是放在.sln里。
下面是.csproj里的内容：
<Project DefaultTargets="Build" xmlns="http://schemas.
<PropertyGroup>
<Configuration Condition=" '$(Configuration)' == '' ">Debug</Configuration>
<Platform Condition=" '$(Platform)' == '' ">AnyCPU</Platform>
<ProductVersion>8.0.50727</ProductVersion>
<SchemaVersion>2.0</SchemaVersion>
<ProjectGuid>{6C6E6736-5891-4018-AD5C-37F08C942528}</ProjectGuid>
<OutputType>WinExe</OutputType>
<AppDesignerFolder>Properties</AppDesignerFolder>
<RootNamespace>VehicleManageSystem</RootNamespace>
<AssemblyName>VehicleManageSystem</AssemblyName>
</PropertyGroup>
<PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Debug|AnyCPU' ">
<DebugSymbols>true</DebugSymbols>
<DebugType>full</DebugType>
<Optimize>false</Optimize>
<OutputPath>bin\Debug\</OutputPath>
<DefineConstants>DEBUG;TRACE</DefineConstants>
<ErrorReport>prompt</ErrorReport>
<WarningLevel>4</WarningLevel>
</PropertyGroup>
<PropertyGroup Condition=" '$(Configuration)|$(Platform)' == 'Release|AnyCPU' ">
<DebugType>pdbonly</DebugType>
<Optimize>true</Optimize>
<OutputPath>bin\Release\</OutputPath>
<DefineConstants>TRACE</DefineConstants>
<ErrorReport>prompt</ErrorReport>
<WarningLevel>4</WarningLevel>
</PropertyGroup>
<ItemGroup>
<Reference Include="System" />
<Reference Include="System.Data" />
<Reference Include="System.Deployment" />
<Reference Include="System.Drawing" />
<Reference Include="System.Windows.Forms" />
<Reference Include="System.Xml" />
</ItemGroup>
<ItemGroup>
<Compile Include="Login.cs">
<SubType>Form</SubType>
</Compile>
<Compile Include="Login.Designer.cs">
<DependentUpon>Login.cs</DependentUpon>
</Compile>
<Compile Include="MainForm.cs">
<SubType>Form</SubType>
</Compile>
<Compile Include="MainForm.Designer.cs">
<DependentUpon>MainForm.cs</DependentUpon>
</Compile>
<Compile Include="Option.cs">
<SubType>Form</SubType>
</Compile>
<Compile Include="Option.Designer.cs">
<DependentUpon>Option.cs</DependentUpon>
</Compile>
<Compile Include="Program.cs" />
<Compile Include="Properties\AssemblyInfo.cs" />
<EmbeddedResource Include="Login.resx">
<SubType>Designer</SubType>
<DependentUpon>Login.cs</DependentUpon>
</EmbeddedResource>
<EmbeddedResource Include="MainForm.resx">
<SubType>Designer</SubType>
<DependentUpon>MainForm.cs</DependentUpon>
</EmbeddedResource>
<EmbeddedResource Include="Option.resx">
<SubType>Designer</SubType>
<DependentUpon>Option.cs</DependentUpon>
</EmbeddedResource>
<EmbeddedResource Include="Properties\Resources.resx">
<Generator>ResXFileCodeGenerator</Generator>
<LastGenOutput>Resources.Designer.cs</LastGenOutput>
<SubType>Designer</SubType>
</EmbeddedResource>
<Compile Include="Properties\Resources.Designer.cs">
<AutoGen>True</AutoGen>
<DependentUpon>Resources.resx</DependentUpon>
</Compile>
<None Include="Properties\Settings.settings">
<Generator>SettingsSingleFileGenerator</Generator>
<LastGenOutput>Settings.Designer.cs</LastGenOutput>
</None>
<Compile Include="Properties\Settings.Designer.cs">
<AutoGen>True</AutoGen>
<DependentUpon>Settings.settings</DependentUpon>
<DesignTimeSharedInput>True</DesignTimeSharedInput>
</Compile>
</ItemGroup>
<Import Project="$(MSBuildBinPath)\Microsoft.CSharp.targets" />
<!-- To modify your build process, add your task inside one of the targets below and uncomment it.
Other similar extension points exist, see
<Target Name="BeforeBuild">
</Target>
<Target Name="AfterBuild">
</Target>
-->
</Project>
