注释过滤
........\1.c
........\1.dsp
........\1.dsw
........\1.ncb
........\1.opt
........\1.plg
........\a.c
........\b.c
........\Debug
........\.....\1.exe
........\.....\1.ilk
........\.....\1.obj
........\.....\1.pch
........\.....\1.pdb
........\.....\vc60.idb
........\.....\vc60.pdb