在Vue使用NProgress加载进度条

npm install --save nprogress 
// 或者
yarn add nprogress

//用法
NProgress.start();
NProgress.done();

import Vue from 'vue'
import App from './App'
import router from './router'
import axios from 'axios'
import NProgress from 'nprogress' // 引入nprogress插件
import 'nprogress/nprogress.css'  // 这个nprogress样式必须引入

// axios请求拦截器
axios.interceptors.request.use(
  config => {
    NProgress.start() // 设置加载进度条(开始..)
    return config
  },
  error => {
    return Promise.reject(error)
  }
)
// axios响应拦截器
axios.interceptors.response.use(
  function(response) {
    NProgress.done() // 设置加载进度条(结束..)
    return response
  },
  function(error) {
    return Promise.reject(error)
  }
)

//导入
import NProgress from 'nprogress'
import 'nprogress/nprogress.css'

router.beforeEach((to, from, next) => {
  NProgress.start()
  next()
})
router.afterEach(() => {
  NProgress.done()
})

<script>
  NProgress.start()
  // 给页面设置请求加载进度条效果
  window.onload = function() {
    NProgress.done()
  }
</script>

#nprogress .bar {
      background: red !important; //自定义颜色
    }

NProgress.configure({showSpinner: false});

NProgress.configure({ease:'ease',speed:500});

NProgress.configure({minimum:0.3});

NProgress.set(0.4);