{
            test: /\.(css|scss)$/,
            include: [
              /scoped/,
            ],
            loader: ExtractTextPlugin.extract(
              Object.assign(
                {
                  fallback: {
                    loader: require.resolve('style-loader'),
                    options: {
                      hmr: false,
                    },
                  },
                  use: [
                    {
                      loader: require.resolve('css-loader'),
                      options: {
                        importLoaders: 2,
                        modules:true,
                        localIdentName:'[local]-[hash:base64:5]',
                        // localIdentName:'[name]__[local]___[hash:base64:5]',
                        minimize: true,
                        sourceMap: shouldUseSourceMap,
                      },
                    },
                    {
                      loader: require.resolve('postcss-loader'),
                      options: {
                        // Necessary for external CSS imports to work
                        // https://github.com/facebookincubator/create-react-app/issues/2677
                        ident: 'postcss',
                        plugins: () => [
                          require('postcss-flexbugs-fixes'),
                          autoprefixer({
                            browsers: [
                              '>1%',
                              'last 4 versions',
                              'Firefox ESR',
                              'not ie < 9', // React doesn't support IE8 anyway
                            ],
                            flexbox: 'no-2009',
                          }),
                        ],
                      },
                    },
                    {
                      loader: require.resolve('sass-loader') // compiles Less to CSS
                    }
                  ],
                },
                extractTextPluginOptions
              )
            ),
            // Note: this won't work without `new ExtractTextPlugin()` in `plugins`.
          },
          {
            test: /\.(css|scss)$/,
            exclude: [
              /scoped/,
            ],
            loader: ExtractTextPlugin.extract(
              Object.assign(
                {
                  fallback: {
                    loader: require.resolve('style-loader'),
                    options: {
                      hmr: false,
                    },
                  },
                  use: [
                    {
                      loader: require.resolve('css-loader'),
                      options: {
                        importLoaders: 2,
                        minimize: true,
                        sourceMap: shouldUseSourceMap,
                      },
                    },
                    {
                      loader: require.resolve('postcss-loader'),
                      options: {
                        // Necessary for external CSS imports to work
                        // https://github.com/facebookincubator/create-react-app/issues/2677
                        ident: 'postcss',
                        plugins: () => [
                          require('postcss-flexbugs-fixes'),
                          autoprefixer({
                            browsers: [
                              '>1%',
                              'last 4 versions',
                              'Firefox ESR',
                              'not ie < 9', // React doesn't support IE8 anyway
                            ],
                            flexbox: 'no-2009',
                          }),
                        ],
                      },
                    },
                    {
                      loader: require.resolve('sass-loader'),
                    }
                  ],
                },
                extractTextPluginOptions
              )
            ),
            // Note: this won't work without `new ExtractTextPlugin()` in `plugins`.
          },

webpack.config.prod.js 中配置无效 打包出来的 标签页没有加上样式 postcss-loader 也失效
打包后：

.App {
  text-align: center;
  transform: translateX(5px); }

<div>标题<p>45132</p></div>

开发模式：

.App-2R2Ee {
  text-align: center;
  -webkit-transform: translateX(5px);
  -ms-transform: translateX(5px);
  transform: translateX(5px); }

<div class="header-V9F5Y">标题<p class="sss-2Irfm">45132</p></div>

配置中是只有scoped.scss 开启css modules
请问怎么配置