简单的C#图像放大器.只有一个功能，就是放大指定倍数的图像，很简单，适合入门级新手朋友，可以学习一些图像运算方面的知识。-A simple C# image amplifier. There is only one function, namely to enlarge the specified multiple of images, very simple, suitable for entry-level novice friends, you can learn some knowled