例3_3 .....\chap3_3.cpp .....\chap3_3.dsp .....\chap3_3.dsw .....\chap3_3.ncb .....\chap3_3.opt .....\chap3_3.plg .....\Debug .....\.....\chap3_3.exe .....\.....\chap3_3.ilk .....\.....\chap3_3.obj .....\.....\chap3_3.pdb .....\.....\vc60.pdb