说明：  该方法快速有效,实现了JPG图像文件的数 据库存储、显示、打印。数据库检索照片的速度大 大快于文件系统 在网络运行的应用系统中大大减 轻了网络负载,提高了速度 也大大节省了数据库 存储容量。
(This method is fast and effective to achieve a JPG image file database storage, display and printing. Database search photos much faster than the file system in the network application systems significantly reduce the network load and improve the speed also greatly reduce the database storage capacity.)