引入sass依赖

package.json

@@ -25,6 +25,8 @@
     "@vue/cli-service": "~5.0.0",
     "eslint": "^7.32.0",
     "eslint-plugin-vue": "^8.0.3",
+    "sass": "1.32.13",
+    "sass-loader": "10.1.1",
     "vue-template-compiler": "^2.6.14"
   },
   "eslintConfig": {

src/main.js

@@ -5,7 +5,7 @@ import ElementUI from 'element-ui'
 import Echart from './components/echart/index.vue'
 
 import 'element-ui/lib/theme-chalk/index.css'
-import '@/assets/styles/vpp.css' // public css
+import '@/assets/styles/vpp.scss' // public css
 
 // 自定义组件
 Vue.component("Echart", Echart)