本程序是一个处理灰度BMP图片的完整框架，包括打开图片，显示图片，保存图片等主要功能，使用者可任意添加对图像的处理功能。(This program is a complete framework to deal with grayscale BMP pictures, including open pictures, display pictures, save pictures and other major functions, users can arbitrarily add the image processing function)