在node.js Web服务器（使用express）上生成图像后，显示图像的最简单方法是什么？

I created a small web server in node.js using the express 4 framework. When a user submits an image file from the main web page, it uploads to the server via the multer middleware, is processed by a python script, and then the resulting image is saved on the server. I created a small web server in node.js using t