一个基于MFC菜单、工具栏和状态栏的应用程序，包括两个菜单的切换、右键弹出式菜单、工具栏的切换、状态栏信息格的添加等功能。-MFC-based menus, toolbars, and status bar of the application, including the two menus to switch, right pop-up menus, tool bar switch, the status bar to add features such as the information

多文档应用程序代码，有网格，有背景的画图程序支持多种图形的绘制-Multi-document application code, there is a grid, there is a background Paint program supports a variety of graphics rendering