您可以将它们导入到main.js中，如下所示:

You could import them in the main.js as follows :

  import './assets/css/bootstrap.min.css';
  import  './assets/css/main.css'
  ....

或在App.vue中:

 <template>...</template>
 <script>...</script>
 <style src='./assets/css/bootstrap.min.css'></style>
 <style src='./assets/css/main.css'></style>