新手问几个文件都有些什么作用..."Classes.hpp","vcl.h","cbcomm.h" 他们各自有什么作用

..."Classes.hpp","vcl.h","cbcomm.h" 他们各自有什么作用..请大虾帮忙了... ..."Classes.hpp","vcl.h","cbcomm.h" 他们各自有什么作用..