路由

package.json

@@ -9,7 +9,8 @@
   },
   "dependencies": {
     "core-js": "^3.3.2",
-    "vue": "^2.6.10"
+    "vue": "^2.6.10",
+    "vue-router": "^3.1.3"
   },
   "devDependencies": {
     "@vue/cli-plugin-babel": "^4.0.0",

src/App.vue

@@ -1,28 +1,18 @@
 <template>
   <div id="app">
-    <img alt="Vue logo" src="./assets/logo.png">
-    <HelloWorld msg="Welcome to Your Vue.js App"/>
+    <router-view></router-view>
   </div>
 </template>
 
 <script>
-import HelloWorld from './components/HelloWorld.vue'
 
 export default {
   name: 'app',
   components: {
-    HelloWorld
   }
 }
 </script>
 
 <style>
-#app {
-  font-family: 'Avenir', Helvetica, Arial, sans-serif;
-  -webkit-font-smoothing: antialiased;
-  -moz-osx-font-smoothing: grayscale;
-  text-align: center;
-  color: #2c3e50;
-  margin-top: 60px;
-}
+
 </style>

src/main.js

@@ -1,8 +1,9 @@
 import Vue from 'vue'
 import App from './App.vue'
-
+import router from "./router"
 Vue.config.productionTip = false
 
 new Vue({
   render: h => h(App),
+  router
 }).$mount('#app')

src/router.js

@@ -0,0 +1,15 @@
+import Vue from 'vue'
+//1.导入路由组件vue-router
+import Router from 'vue-router'
+//2.调用vue-router
+Vue.use(Router)
+
+const router=new Router({
+  routes: [
+    // {
+    //   path: '/',
+    //   component: Hello
+    // }
+  ]
+});
+export default route;

yarn.lock

@@ -7938,6 +7938,11 @@ vue-loader@^15.7.0:
     vue-hot-reload-api "^2.3.0"
     vue-style-loader "^4.1.0"
 
+vue-router@^3.1.3:
+  version "3.1.3"
+  resolved "https://registry.yarnpkg.com/vue-router/-/vue-router-3.1.3.tgz#e6b14fabc0c0ee9fda0e2cbbda74b350e28e412b"
+  integrity sha512-8iSa4mGNXBjyuSZFCCO4fiKfvzqk+mhL0lnKuGcQtO1eoj8nq3CmbEG8FwK5QqoqwDgsjsf1GDuisDX4cdb/aQ==
+
 vue-style-loader@^4.1.0:
   version "4.1.2"
   resolved "https://registry.npm.taobao.org/vue-style-loader/download/vue-style-loader-4.1.2.tgz#dedf349806f25ceb4e64f3ad7c0a44fba735fcf8"