<template>
  <div id="app">
    <HelloWorld />
    <Test></Test>
  </div>
</template>

<script>
import HelloWorld from './components/HelloWorld.vue'
//注册组件
import Test from "./components/Test.vue"
export default {
  name: 'App',
  components: {
    HelloWorld,
    Test
  }
}
</script>

 运行结果