上传文件的功能是实现了采用双线性差值法来实现图像放大-Bilinear difference method to achieve the image to enlarge

关于位图的操作及设计 实现位图打开，放大，缩小的功能。此外还有绘图等功能-Bitmap open, enlarged, reduced the bitmap operation and design. There are also features such as drawing