更新

babel.config.js

@@ -1,3 +1,3 @@
 module.exports = {
-  presets: ["@vue/cli-plugin-babel/preset"]
+  presets: ['@vue/cli-plugin-babel/preset'],
 };

src/App.vue

@@ -1,8 +1,24 @@
 <template>
-  <div id="app">
+  <div id="App">
     <router-view></router-view>
   </div>
 </template>
+
+<script>
+export default {
+  metaInfo: { title: 'App' },
+  name: 'App',
+  props: {},
+  components: {},
+  data: function() {
+    return {};
+  },
+  created() {},
+  methods: {},
+  computed: {},
+};
+</script>
+
 <style>
 @import './assets/css/main.css';
 @import './assets/css/color-dark.css'; /*深色主题*/