界面编程，C++经典框架，实现类的集合、继承、多态。实现了整体的编译框架和结构，对C++开发有很多的帮助。定义相关的结构和头文件。-Interface programming, C++ classic fr a mework, the realization of the collection, inheritance, polymorphism. To achieve the overall compilation fr a mework and structure of the C++ de