查看默认的请求头

import axios from 'axios'

let url = 'http://httpbin.org/get'

const res = await axios.get(url)

console.log(res.data);
// 'User-Agent': 'axios/0.27.2',

设置一个请求头

import axios from 'axios'

let url = 'http://httpbin.org/get'

const headers = {
  'User-Agent':
    'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_4) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/104.0.0.0 Safari/537.36',
}

const res = await axios.get(url, {
  headers,
})

console.log(res.data)
// 'User-Agent': 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_4) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/104.0.0.0 Safari/537.36'