例5-2 .....\Debug .....\.....\rotate.exe .....\.....\rotate.ilk .....\.....\rotate.obj .....\.....\rotate.pch .....\.....\rotate.pdb .....\.....\vc60.idb .....\.....\vc60.pdb .....\Makefile .....\rotate.cpp .....\rotate.dsp .....\rotate.dsw .....\rotate.ncb .....\rotate.opt .....\rotate.plg