用JAVA实现的读取，写入XML的程序，实现了SAX和DOM两种方式。-using JAVA read and write XML program, realized the SAX and DOM two ways.

使用Java语言编写的一个网络爬虫demo，将爬取下来的网页转化为统一的XML格式，对XML文件进行解析，对各个DOM节点进行编号。根据节点编号可以获取到各元素节点的内容-Using the Java language using a web crawler demo, will climb to take down the web page into a unified XML format, the XML file is parsed for each DOM nodes are numb