vue-cli引入全局less

引用：https://blog.csdn.net/RR_chen/article/details/124389185
https://cli.vuejs.org/zh/guide/css.html

vue-cli全局引入less：
安装 yarn add style-resources-loader --dev
配置vue.config.js :

const path = require('path');
module.exports = {
  chainWebpack: config => {
    const types = ['vue-modules', 'vue', 'normal-modules', 'normal']
    types.forEach(type => addStyleResource(config.module.rule('less').oneOf(type)))
  },
}

function addStyleResource (rule) {
  rule.use('style-resource')
    .loader('style-resources-loader')
    .options({
      patterns: [
        path.resolve(__dirname, './src/assets/less/import.less'),
      ],
    })
}

```