一个可显示三级的VC++菜单树源码，树控菜单应用范例，也就是大家俗称的“树形菜单”，可一级一级展开，像树枝一样展开，有的树控菜单可显示无限级，有的是定级的，本款树形菜单可显示三级子菜单，可满足大部分的日常应用，大家可看一下运行效果图。-A three of VC++ menu tree source tree control menu application example, is commonly known as the " tree menu"　can be a level, the same as the branches expand some tree control menu can display an unlimited level, plenty of grading, the models tree menu can display three sub-menus to meet most of the day-to-day applications, we can look at the running effect diagram.