编译原理--词法分析 功能： 输入：所给文法的源程序字符串 输出：二元组（syn,token或sum）构成的序列-Compilation Principle- lexical analysis functions: Input: the grammar of the source code to the output string: Binary Group (syn, token or sum) constitute a sequence

逐个扫面程序单词，以二元组（syn,token或sum）形式输出-Lexical analysis program

编译原理 词法分析.用java语言实现，读者可以自行修改syn码。-grammar analyser coded in java, hoping that it will be useful to you,and the comments you are going to feed back