词法分析器设计PL10语言的此法分析器，能从任意文件中读取并识别一个完整的程序代码中的单词（关键字）、运算符、界符、标识符，常数，并以能显示分析结果。本词法分析器是用C语言来实现的。-Lexical analyzer designed PL10 language of this law parser, to read from any file and identify a complete code of the word (keyword), operators, industry oper