封装方法，搭建项目

src/views/HomeView.vue

@@ -1,18 +1,14 @@
 <template>
   <div class="home">
     <img alt="Vue logo" src="../assets/logo.png">
-    <HelloWorld msg="Welcome to Your Vue.js App"/>
+    <HelloWorld msg="Welcome to Your Vue.js App" />
   </div>
 </template>
 
-<script>
+<script setup>
 // @ is an alias to /src
 import HelloWorld from '@/components/HelloWorld.vue'
 
-export default {
-  name: 'HomeView',
-  components: {
-    HelloWorld
-  }
-}
+console.log(process.env.VUE_APP_API_URL)
+
 </script>