无法使用Node.js通过HTML访问JavaScript静态文件

const http = require('http');
const fs = require('fs');

const server = http.createServer((req, res) => {
  if (req.url === '/script.js') {
    fs.readFile(__dirname + '/script.js', (err, data) => {
      if (err) {
        res.writeHead(404);
        res.end(JSON.stringify(err));
        return;
      }
      res.writeHead(200, { 'Content-Type': 'text/javascript' });
      res.end(data);
    });
  } else {
    res.writeHead(404);
    res.end('File not found');
  }
});

server.listen(3000, () => {
  console.log('Server is running on port 3000');
});