vue-cli3中element,vue,vue-router通

1、index.html中加入

 <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/element-ui/2.4.7/theme-chalk/index.css">
 <script src="https://cdn.bootcss.com/vue/2.5.9/vue.min.js"></script>
  <script src="https://cdn.bootcss.com/vuex/3.0.1/vuex.min.js"></script>
  <script src="https://cdn.bootcss.com/vue-router/3.0.1/vue-router.min.js"></script>
  <script src="https://cdn.bootcss.com/axios/0.15.3/axios.min.js"></script>
  <script src="https://cdn.bootcss.com/element-ui/2.4.7/index.js"></script> 

2、vue.config.js中加入

configureWebpack: {
        externals: {
            'vue': 'Vue',
            'vue-router': 'VueRouter',
            'vuex': 'Vuex',
            'axios': 'axios',
            'element-ui': 'ELEMENT'
        }
    }

注意！这里 element-ui 变量名要使用 ELEMENT，因为element-ui的 umd 模块名是 ELEMENT

借鉴 https://juejin.im/post/5a291092518825293b50366d