这是我的upload.js代码:

var multer = require('multer');
var express = require('express');
const router = express.Router();

var storage = multer.diskStorage({
  destination: function (req, file, cb) {
    cb(null, 'uploads');
  },
  filename: function (req, file, cb) {
    cb(null, file.fieldname + '-' + Date.now());
  },
});

var upload = multer({ storage: storage });

router.post('/', upload.single('file'), (req, res, next) => {
  const file = req.file;
  if (!file) {
    const error = new Error('Please upload a file');
    error.httpStatusCode = 400;
    return next(error);
  }
  res.send(file);
});

module.exports = router;

有人能说出Router.Get是什么吗？ 这样我就可以在响应中得到一个图像。