扫描函数
........\Debug
........\.....\position.exe
........\.....\position.ilk
........\.....\position.obj
........\.....\position.pch
........\.....\position.pdb
........\.....\search.obj
........\.....\search.pch
........\.....\search.pdb
........\.....\vc60.idb
........\.....\vc60.pdb
........\position.cpp
........\position.dsp
........\position.dsw
........\position.ncb
........\position.opt
........\position.plg
........\search.c
........\search.dsp
........\search.dsw
........\search.ncb
........\search.opt
........\search.plg
........\substr.c