解析xml为树状结构，c编写-analytic xml structure of the tree, c prepared

可以在安卓系统打印出树的层次结构，采用的是java的泛型编程，只需自己写节点类型和xml文件就可以实现自己的树。-You can print out the Android hierarchy tree, using generic programming java, just write your own node types and xml file you can implement your own tree.