这个文件里一直有一个源文件，主要是对数控系统中用到的G代码进行语法和词法分析，编译，对搞数控的兄弟有一定的参考价值。-This file has been a source file, mainly used in the numerical control system, G-code syntax and lexical analysis, compile, NC brothers are engaged in a certain reference value.