nprogress 窗口进度条

1.安装后引入包

import NProgress from 'nprogress'

2.引入样式
import 'nprogress/nprogress.css'

3.`请求拦截器和相应拦截器中添加加载进度条`
axios.interceptors.request.use((config)=>{
 NProgress.start();
 config.headers.Authorization = window.sessionStorage.getItem('token');
 return config;
})
axios.interceptors.response.use((config)=>{
 NProgress.done()
 return config;
})