MFC多页面范例。实现串口自动读写、配置和检测设备，多页面多种元素显示、文件导出、系统设置。程序经长期测试运行，可以直接使用。编译环境VC++6.0-MFC multi-page example. Achieve automatic serial read and write, configuration and testing equipment, and a variety of elements in multi-page file export, and system settings.