引入axios
import axios from 'axios';
//安装方法
npm install axios
//或
bower install axios
也可以用script引入
<script src="https://unpkg.com/axios/dist/axios.min.js"></script>
几种请求方式
axios.request(config)
axios.get(url[, config])
axios.delete(url[, config])
axios.head(url[, config])
axios.post(url[, data[, config]])
axios.put(url[, data[, config]])
axios.patch(url[, data[, config]])
