复合梯形
........\Debug
........\.....\ft.exe
........\.....\ft.ilk
........\.....\ft.obj
........\.....\ft.pch
........\.....\ft.pdb
........\.....\vc60.idb
........\.....\vc60.pdb
........\ft.cpp
........\ft.dsp
........\ft.dsw
........\ft.ncb
........\ft.opt
........\ft.plg