实例073——动态添加、删除树形控件的节点，获取树形控件的选中项\TreeControlDemo\BaseTreeControl.ncb
.............................................................\...............\BaseTreeControl.opt
.............................................................\...............\ReadMe.txt
.............................................................\...............\Resource.h
.............................................................\...............\StdAfx.cpp
.............................................................\...............\StdAfx.h
.............................................................\...............\TreeControlDemo.aps
.............................................................\...............\TreeControlDemo.clw
.............................................................\...............\TreeControlDemo.cpp
.............................................................\...............\TreeControlDemo.dsp
.............................................................\...............\TreeControlDemo.dsw
.............................................................\...............\TreeControlDemo.h
.............................................................\...............\TreeControlDemo.ncb
.............................................................\...............\TreeControlDemo.opt
.............................................................\...............\TreeControlDemo.plg
.............................................................\...............\TreeControlDemo.rc
.............................................................\...............\TreeControlDemoDlg.cpp
.............................................................\...............\TreeControlDemoDlg.h
.............................................................\...............\Debug\TreeControlDemo.exe
.............................................................\...............\res\Ledgoff.bmp
.............................................................\...............\...\Ledgon.bmp
.............................................................\...............\...\TreeControlDemo.ico
.............................................................\...............\...\TreeControlDemo.rc2
.............................................................\...............\Debug
.............................................................\...............\res
.............................................................\TreeControlDemo
实例073——动态添加、删除树形控件的节点，获取树形控件的选中项