说明：  编译课程设计，自己编的一个词法分析器，功能还算强大，只要自己再在上面加些代码可以构成语法分析，（包括与处理程序）.
(compiler curriculum design, own a series of the lexical analyzer, functions fairly strong, as long as the above again add some code may constitute syntax analysis, (including processing).)