npm create vite@latest my-userscript
cd my-userscript
npm install

npm install --save quasar @quasar/extras
npm install --save-dev @quasar/vite-plugin sass-embedded@^1.80.2

//main.js文件

import { createApp } from 'vue'
import { Quasar } from 'quasar'

// Import icon libraries
import '@quasar/extras/material-icons/material-icons.css'

// Import Quasar css
import 'quasar/src/css/index.sass'

// Assumes your root component is App.vue
// and placed in same folder as main.js
import App from './App.vue'

const myApp = createApp(App)

myApp.use(Quasar, {
  plugins: {}, // import Quasar plugins and add here
})

// Assumes you have a <div id="app"></div> in your index.html
myApp.mount('#app')

// vite.config.js文件

import { fileURLToPath } from 'node:url'
import { defineConfig } from 'vite'
import vue from '@vitejs/plugin-vue'
import { quasar, transformAssetUrls } from '@quasar/vite-plugin'

// https://vitejs.dev/config/
export default defineConfig({
  plugins: [
    vue({
      template: { transformAssetUrls }
    }),

    // @quasar/plugin-vite options list:
    // https://github.com/quasarframework/quasar/blob/dev/vite-plugin/index.d.ts
    quasar({
      sassVariables: fileURLToPath(
        new URL('./src/quasar-variables.sass', import.meta.url)
      )
    })
  ]
})

// 創(chuàng)建sass文件 src/quasar-variables.sass

$primary   : #1976D2
$secondary : #26A69A
$accent    : #9C27B0

$dark      : #1D1D1D

$positive  : #21BA45
$negative  : #C10015
$info      : #31CCEC
$warning   : #F2C037

npm install --save-dev @types/node