使用bable-plugin-component的前提下进行了如下配置，但是并没有生效//vue.config.jsmodule.exports = { css: { loaderOptions: { sass: { prependData: `@import "~@/styles/element-variables.scss";` } } }}//element-variables.scss/*Write your variables here. All available variables can befound in element-ui/packages/theme-chalk/src/common/var.scss.For example, to overwrite the theme color:我是公共变量*/$--color-primary:yellow ;$--border-radius-base: 2px;/* icon font path, required */$--font-path: '~element-ui/lib/theme-chalk/fonts';