5.11 如何删除MDI框架窗口中的菜单
................................\Demo
................................\....\ChildFrm.cpp
................................\....\ChildFrm.h
................................\....\Debug
................................\....\Demo.cpp
................................\....\Demo.dsp
................................\....\Demo.dsw
................................\....\Demo.h
................................\....\Demo.plg
................................\....\Demo.rc
................................\....\DemoDoc.cpp
................................\....\DemoDoc.h
................................\....\DemoView.cpp
................................\....\DemoView.h
................................\....\MainFrm.cpp
................................\....\MainFrm.h
................................\....\ReadMe.txt
................................\....\Resource.h
................................\....\StdAfx.cpp
................................\....\StdAfx.h
................................\....\res
................................\....\...\Demo.ico
................................\....\...\Demo.rc2
................................\....\...\DemoDoc.ico