vue项目打包后资源相对引用路径的和背景图片路径问题

  build: {
    // Template for index.html
    index: path.resolve(__dirname, ‘../dist/index.html‘),
    //编译输入的 index.html 文件
    // Paths
    assetsRoot: path.resolve(__dirname, ‘../dist‘),
    // 编译输出的静态资源路径
    assetsSubDirectory: ‘static‘,
    // 编译输出的二级目录
    assetsPublicPath: ‘./‘,
    //编译发布的根目录， 编译之前assetsPublicPath: ‘/‘,之前没有.;由于是引入相对路径，所以改为"./".可配置为资源服务器域名或 CDN 域名

    productionSourceMap: true,
    //map文件为可以准确显示哪里报错,是否开启 cssSourceMap,当然打包的时候可以设置为false，文件小些，但是如果有错误，控制台不会报具体位置
    // https://webpack.js.org/configuration/devtool/#production
    devtool: ‘#source-map‘,

    // Gzip off by default as many popular static hosts such as
    // Surge or Netlify already gzip all static assets for you.
    // Before setting to `true`, make sure to:
    // npm install --save-dev compression-webpack-plugin
    productionGzip: false,
    // 是否开启 gzip
    productionGzipExtensions: [‘js‘, ‘css‘],
    // 需要使用 gzip 压缩的文件扩展名

    // Run the build command with an extra argument to
    // View the bundle analyzer report after build finishes:
    // `npm run build --report`
    // Set to `true` or `false` to always turn it on or off
    bundleAnalyzerReport: process.env.npm_config_report
  }

  if (options.extract) {
      return ExtractTextPlugin.extract({
        use: loaders,
        fallback: ‘vue-style-loader‘,
        publicPath: ‘../../‘
      })
    } else {
      return [‘vue-style-loader‘].concat(loaders)
    }