使用axios进行多个任务并发

import React from 'react'
import axios from 'axios'
import{Button} from 'antd' 

export default class Postdemo extends React.Component {
  state = {

  }


  componentDidMount() {
    axios.all([axios.get("http://httpbin.org/response-headers?freeform=123"),axios.post("http://httpbin.org/response-headers",{'freeform':123})]).then(res=>{
      console.log(res)//res为数组类型，数组的第一项为get请求的返回值，数组的第二项为post请求的返回值
    })
  }

  render() {
    return (
      <div>
       
      </div>
    )
  }
}