简单的词法分析程序 1)通过理解正规式、有限自动机原理，根据下面的X语言的说明编制一个X语言的词法分析程序。 (2)提交实验报告，报告内容如下： 目的要求、DFA、程序清单（带注释）、测试样例及结果-simple lexical analysis procedure 1) understanding through informal style, Finite Automata Theory, according to the following X-language statement prepared an X language lexical analysis procedure. (2) the author's experimental report, which reads as follows : Objective, DFA, procedures list (with Notes), and sample test results