ArcEngine缓冲区的创建，实现了基本的ArcMap功能-Create a ArcEngine buffer

该文件是一个MFC入门程序，讲解Mfc中链接的建立和按钮的使用，与课本的理论知识相结合，可以更加深入了解MFC-This file is a introduction to the MFC procedures, to explain in detail the establishment of the links and buttons in the MFC used, combined with a textbook theory knowledge, can more deeply und