增加vue-router来控制页面显示

src/main.ts

@@ -1,7 +1,8 @@
 import { createApp } from 'vue'
-import './style.css'
-import type { App as AppType } from 'vue'
 import App from './App.vue'
+import router from './router'
+import './style.css'
 
-const app: AppType = createApp(App)
+const app = createApp(App)
+app.use(router)
 app.mount('#app')