CTreeCtrlXML能直接将树节点序列化为XML，完成读写功能-CTreeCtrlXML tree node can be directly serialized XML, complete read and write capabilities

treeview与listview结合写的一个电子记事本程序，用的是C#环境，XML数据读写-treeview and listview with an electronic notebook to write programs using the C# environment, XML data read and write