台阶
....\12.cpp
....\12.dsp
....\12.dsw
....\12.ncb
....\12.opt
....\12.plg
....\Debug
....\.....\12.exe
....\.....\12.ilk
....\.....\12.obj
....\.....\12.pch
....\.....\12.pdb
....\.....\vc60.idb
....\.....\vc60.pdb