LINQ
....\Ch12跟我上机
....\............\Ex12-5
....\............\Ex12-5.sln
....\............\Ex12-5.suo
....\............\......\bin
....\............\......\...\Debug
....\............\......\...\.....\Ex12-5.exe
....\............\......\...\.....\Ex12-5.pdb
....\............\......\...\.....\Ex12-5.vshost.exe
....\............\......\...\.....\Ex12-5.vshost.exe.manifest
....\............\......\Ex12-5.csproj
....\............\......\obj
....\............\......\...\Debug
....\............\......\...\.....\Ex12-5.csproj.FileListAbsolute.txt
....\............\......\...\.....\Ex12-5.exe
....\............\......\...\.....\Ex12-5.pdb
....\............\......\...\.....\TempPE
....\............\......\Program.cs
....\............\......\Properties
....\............\......\..........\AssemblyInfo.cs