读取BMP图片\Debug\l.exe
...........\.....\l.ilk
...........\.....\l.obj
...........\.....\l.pch
...........\.....\l.pdb
...........\.....\vc60.idb
...........\.....\vc60.pdb
...........\l.c
...........\l.dsp
...........\l.dsw
...........\l.ncb
...........\l.opt
...........\l.plg
...........\pict.bmp
...........\Thumbs.db
...........\Debug
读取BMP图片