morefun/src/pages/chart/chart.js

import Vue from 'vue'
import App from './App.vue'
import router from './router'
import ECharts from 'vue-echarts/components/ECharts.vue'
import 'echarts/theme/dark'
Vue.config.productionTip = false
Vue.component('chart', ECharts)

new Vue({
  router,
  render: h => h(App)
}).$mount('#app')