如何在nodejs中获取返回头部的值

const http = require('http');

const options = {
  hostname: 'www.example.com',
  port: 80,
  path: '/',
  method: 'GET'
};

const req = http.request(options, (res) => {
  console.log('Status Code:', res.statusCode);
  console.log('Headers:', res.headers);

  // 获取特定头部的值
  const contentType = res.headers['content-type'];
  console.log('Content-Type:', contentType);
});

req.on('error', (error) => {
  console.error('Error:', error);
});

req.end();