多线程操作

..........\AssemblyInfo.cs
..........\Backup

..........\......\AssemblyInfo.cs
..........\......\MainApp.cs
..........\......\MainApp.resx
..........\......\SimpleEx.csproj
..........\......\SimpleEx.csproj.user
..........\......\SimpleEx.sln
..........\BIN
..........\...\Debug
..........\...\.....\SimpleEx.exe
..........\...\.....\SimpleEx.pdb
..........\...\.....\SimpleEx.vshost.exe
..........\MainApp.cs
..........\MainApp.resx
..........\OBJ
..........\...\Debug
..........\...\.....\SimpleEx.exe
..........\...\.....\SimpleEx.exe.incr
..........\...\.....\SimpleEx.MainApp.resources
..........\...\.....\SimpleEx.pdb
..........\...\.....\SimpleEx.projdata
..........\...\.....\TEMP
..........\...\.....\TempPE
..........\...\SimpleEx.csproj.FileListAbsolute.txt
..........\SimpleEx.csproj
..........\SimpleEx.csproj.user
..........\SimpleEx.sln
..........\SimpleEx.suo
..........\UpgradeLog.XML
..........\_UpgradeReport_Files
..........\....................\UpgradeReport.css
..........\....................\UpgradeReport.xslt
..........\....................\UpgradeReport_Minus.gif
..........\....................\UpgradeReport_Plus.gif