实例5 如何在工具栏添加下拉菜单
..............................\Example

..............................\.......\app.rc
..............................\.......\AssemblyInfo.cpp
..............................\.......\Example.cpp
..............................\.......\Example.vcproj
..............................\.......\Example.vcproj.LUOBIN.luo01.user
..............................\.......\Form1.h
..............................\.......\Form1.resx
..............................\.......\ReadMe.txt
..............................\.......\Release
..............................\.......\.......\app.res
..............................\.......\.......\AssemblyInfo.obj
..............................\.......\.......\BuildLog.htm
..............................\.......\.......\Example.exe.intermediate.manifest
..............................\.......\.......\Example.Form1.resources
..............................\.......\.......\Example.obj
..............................\.......\.......\mt.dep
..............................\.......\.......\stdafx.obj
..............................\.......\.......\vc80.pdb
..............................\.......\resource.h
..............................\.......\stdafx.cpp
..............................\.......\stdafx.h

..............................\.......\未命名1.JPG


..............................\.......\未命名3.JPG
..............................\Example.sln
..............................\release
..............................\.......\Example.exe
..............................\.......\Example.pdb