精确定时\11.cpp
........\11.dsp
........\11.dsw
........\11.ncb
........\11.opt
........\11.plg
........\Debug\11.exe
........\.....\11.ilk
........\.....\11.obj
........\.....\11.pch
........\.....\11.pdb
........\.....\vc60.idb
........\.....\vc60.pdb
........\Debug
精确定时