说明：  这是一个编译原理实验要用到的词法分析程序，用C++完成的，可以实现对C++源程序的词法分析，类型判别，已在VS2008调试通过，欢迎下载。
(This is an experiment to use the compiler from lexical analysis program, using C++ to complete, and can be achieved on the C++ source code of the lexical analysis, the type of discrimination has been adopted in the VS2008 debugger, please download.)