利用COBOL实现报表操作，主要特色功能为实现翻页操作其中-Use COBOL statements operate to achieve the main features for the realization of the flip operation which

简易文档编辑器 实现dos界面下的直接使用 有上下翻页 添加行 删除行 等功能-Summary document editor dos interface directly use add flip up and down the line delete rows

自己写的对图像的历史记录类,历史记录保存文件类，图像剪切类,包含图像的镜像,翻转旋转等-Write your own image for the history class, history class to save the file, image cut class, that contains a mirror image, flip rotation