Java DOM技术解析XML及Java SAX技术解析XML。获取SML文档信息，获取XML及获取SML文档。-Java DOM parsing XML and Java SAX technology technical parsing XML. SML documents to obtain information, access to XML documents and access to SML.

编译器的词法分析，需要在sml环境下运行，分析结果为test.java的内容-Compiler, lexical analysis, you need to run sml environment, the content analysis results test.java