判断CRC_DEMO\0506.aps ............\0506.clw ............\0506.cpp ............\0506.dsp ............\0506.dsw ............\0506.h ............\0506.ncb ............\0506.opt ............\0506.rc ............\0506Dlg.cpp ............\0506Dlg.h ............\CRC.h ............\ReadMe.txt ............\res\0506.ico ............\...\0506.rc2 ............\resource.h ............\StdAfx.cpp ............\StdAfx.h ............\res 判断CRC_DEMO