实例5 如何在工具栏添加下拉菜单\Example.sln
..............................\Example.suo
..............................\release\Example.exe
..............................\.......\Example.pdb
..............................\Example\AssemblyInfo.cpp
..............................\.......\Example.cpp
..............................\.......\Example.vcproj
..............................\.......\Example.vcproj.LUOBIN.luo01.user
..............................\.......\Form1.h
..............................\.......\Form1.resx
..............................\.......\ReadMe.txt
..............................\.......\app.ico
..............................\.......\app.rc
..............................\.......\resource.h
..............................\.......\stdafx.cpp
..............................\.......\stdafx.h
..............................\.......\未命名.JPG
..............................\.......\未命名1.JPG
..............................\.......\未命名11.JPG
..............................\.......\未命名2.JPG
..............................\.......\未命名3.JPG
..............................\.......\Release\AssemblyInfo.obj
..............................\.......\.......\BuildLog.htm
..............................\.......\.......\Example.Form1.resources
..............................\.......\.......\Example.exe.intermediate.manifest
..............................\.......\.......\Example.obj
..............................\.......\.......\app.res
..............................\.......\.......\mt.dep
..............................\.......\.......\stdafx.obj
..............................\.......\.......\vc80.pdb
..............................\.......\Release
..............................\release
..............................\Example
实例5 如何在工具栏添加下拉菜单