《编译原理技术和工具》(龙书)附带的简易编译器前端代码-A simple compiler front-end code with 《Compilers: Principles,Techniques,and Tools》(Alfred V.Aho,Ravi Sethi,Jeffrey D.Ullman)

运用C++语言编写的计算器，附近中附有C++源码-Using C++ language calculator can be found on the nearby C++ source code