词法语法分析器,学习编译原理时做的词法和语法分析程序,-Lexical parser, learning to compile principle of lexical and syntax analysis program,

学习编译原理时做的词法和语法分析程序,词法和语法分析封装在一个类CFenXi中(Learn the compilation principle when doing the lexical and syntax analysis program, the lexical and syntax analysis package in a class CFenXi)