引入babel-polyfill
npm install --save babel-polyfill
main.js添加
import "babel-polyfill"
import Vue from 'vue'
import App from './App'
import router from './router'
import ElementUI from 'element-ui';
import 'element-ui/lib/theme-chalk/index.css';
import clipboard from 'clipboard';
import "babel-polyfill"
webpack.base.conf.js添加
const path = require('path')
const utils = require('./utils')
const config = require('../config')
const vueLoaderConfig = require('./vue-loader.conf')
require("babel-polyfill")
重启即可