参考《编译原理与实践》Knenneth C.Louden ,机械工业出版的翻译版，后面的编译程序设计方案。这是词法分析部分，代码可供参考，这学期开的编译课作业。

-reference "compiler theory and practice" Knenneth C. Louden, industrial machinery published a translation, as the compiler design. This is the lexical analysis, code available for reference, this semester classes opened compiler operations.