扩展实例2 会发声的按钮\BCMenu.cpp
......................\BCMenu.h
......................\BtnST.cpp
......................\BtnST.h
......................\Debug\BCMenu.obj
......................\.....\BtnST.obj
......................\.....\StdAfx.obj
......................\.....\test.exe
......................\.....\test.ilk
......................\.....\test.obj
......................\.....\test.pdb
......................\.....\test.res
......................\.....\testDlg.obj
......................\.....\vc60.idb
......................\.....\vc60.pdb
......................\res\REC0518221958.wav
......................\...\ringin.wav
......................\...\test.ico
......................\...\test.rc2
......................\resource.h
......................\StdAfx.cpp
......................\StdAfx.h
......................\test.aps
......................\test.cpp
......................\test.dsp
......................\test.dsw
......................\test.h
......................\test.ncb
......................\test.opt
......................\test.plg
......................\test.rc
......................\testDlg.cpp
......................\testDlg.h
......................\Debug
......................\res
扩展实例2 会发声的按钮