C写的词法分析器，能实现简单的文件查找， 如果表达式正确，则会在结果框中显示“正确”，否则会显示存在语法错误.这是我第一次上传如果大家发现有错误的文法没有报错，或者正确的文法却报错了，可以向我反映-C wrote lexical analyzer, able to find a simple document, if correct expression will be shown in the results box "correct", as it showed the existence of grammatical mistakes. This is the first time I upload If we found no errors in grammar error, or correct the errors of grammar is , I can reflect