该程序主要采用VC++中的树控制控件，主要针对对树构造的了解及学习的相关代码。-The program mainly uses VC++ in the tree control of the control, mainly on the tree structure for understanding and studying the relevant code.

对于vc++中经典的画线画图示例程序.对于类的控制和画线算法的实现.代码简洁明了-For vc++ in a classic example of procedures for drawing a line drawing. The type of control and painting line algorithm. Concise code

实现Treeview控制的代码，包括增加、删除Node，以及将Nodes保存进数据库中。-Treeview control code, including add, delete the Node, and will save the Nodes into the database.