使用vc实现的类似windows资源管理器的树形窗口，可以查看系统的文件夹及其子目录，对于学习vc的人比较有帮助。本例中并没有使用树形控件是很好的学习资料。-Vc achieved using similar windows explorer tree window, you can view the system folder and its subdirectories, for people to learn more helpful vc. In this case did not us