该程序主要通过编码来实现vb.net中树的生成，节点的添加和合并和删除

自己写的，采用VB.NET写的红黑树插入算法，实现了图形显示红黑树，VS2005下编译通过-Wrote it myself, using VB.NET to write the red and black tree insertion algorithm, the realization of the graphical display a red, black tree, VS2005 compiler through the next