// 增加全局使用less函数
 function lessResourceLoader() {
 var loaders = [
  cssLoader,
  'less-loader',
  {
  loader: 'sass-resources-loader',
  options: {
   resources: [
   path.resolve(__dirname, '../src/assets/less/variables.less'), //定义全局变量的文件路径
   ]
  }
  }
 ];
 if (options.extract) {
  return ExtractTextPlugin.extract({
  use: loaders,
  fallback: 'vue-style-loader'
  })
 } else {
  return ['vue-style-loader'].concat(loaders)
 }
 }

 return {
 css: generateLoaders(),
 postcss: generateLoaders(),
 less: lessResourceLoader('less'),
 sass: generateLoaders('sass', { indentedSyntax: true }),
 scss: generateLoaders('sass'),
 stylus: generateLoaders('stylus'),
 styl: generateLoaders('stylus')
 }

@aaa: ~'>';
.wrap {
  @{aaa} .component1 {
    width: 120px;
  }
　　/deep/ .component2 {
    width: 130px;
　　}
}