设计一个实用的小型类C语言的编译器，能够通过词法分析程序将一串字符流转换为一组单词，并能够通过语法分析程序将该单词组转换为中间代码，中间代码可为四元组等各种形式。-practical design a small category C language compiler. through lexical analysis procedure to a bunch of characters flow into a group of words Grammar can pass this word