判断U盘是否存在及存在个数\ConsoleApplication1\.git\config
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.........................\...................\....\hooks\README.sample
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.........................\...................\....\ms-persist.xml
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.........................\...................\....\refs\heads\master
.........................\...................\.gitattributes
.........................\...................\.gitignore
.........................\...................\.vs\ConsoleApplication1\v14\.suo
.........................\...................\ConsoleApplication1\ConsoleApplication1.vcxproj
.........................\...................\...................\ConsoleApplication1.vcxproj.filters
.........................\...................\...................\Debug\ConsoleA.173480F6.tlog\CL.read.1.tlog
.........................\...................\...................\.....\......................\CL.write.1.tlog
.........................\...................\...................\.....\......................\ConsoleApplication1.lastbuildstate
.........................\...................\...................\.....\......................\link.read.1.tlog
.........................\...................\...................\.....\......................\link.write.1.tlog
.........................\...................\...................\.....\ConsoleApplication1.log
.........................\...................\...................\.....\vc140.idb
.........................\...................\...................\.....\vc140.pdb
.........................\...................\...................\.....\源.obj
.........................\...................\...................\源.cpp
.........................\...................\ConsoleApplication1.sln
.........................\...................\ConsoleApplication1.VC.db
.........................\...................\Debug\ConsoleApplication1.exe
.........................\...................\.....\ConsoleApplication1.ilk
.........................\...................\.....\ConsoleApplication1.pdb
.........................\...................\.git\logs\refs\heads
.........................\...................\ConsoleApplication1\Visual Studio 2015\Backup Files\ConsoleApplication1
.........................\...................\.git\logs\refs
.........................\...................\....\objects\01
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