实验2：上位机读取设备描述符\cydesc.cpp
...........................\cydesc.dsp
...........................\cydesc.dsw
...........................\cydesc.ncb
...........................\cydesc.opt
...........................\cydesc.plg
...........................\Debug\cydesc.exe
...........................\.....\cydesc.ilk
...........................\.....\cydesc.obj
...........................\.....\cydesc.pch
...........................\.....\cydesc.pdb
...........................\.....\vc60.idb
...........................\.....\vc60.pdb
...........................\readme.txt
...........................\Debug
实验2：上位机读取设备描述符