webpack結合less開啓css modules，實現組件之間的 less，css互不干擾

開啓less的modules，關閉css的modules

{
            test: /\.less$/,
            use: [
                require.resolve('style-loader'),
                {
                    loader: require.resolve('css-loader'),
                    options: {
                        modules: true,//開啓
                        localIndexName:"[name]__[local]___[hash:base64:5]"//配置class的名字
                    },
                },
                {
                    loader: require.resolve('less-loader'), // compiles Less to CSS
                },
              {
                loader: require.resolve('postcss-loader'),
                options: {
                  // Necessary for external CSS imports to work
                  // https://github.com/facebookincubator/create-react-app/issues/2677
                  ident: 'postcss',
                  plugins: () => [
                    require('postcss-flexbugs-fixes'),
                    autoprefixer({
                      browsers: [
                        '>1%',
                        'last 4 versions',
                        'Firefox ESR',
                        'not ie < 9', // React doesn't support IE8 anyway
                      ],
                      flexbox: 'no-2009',
                    }),
                  ],
                },
              }
            ],
          },
            {
                test: /\.css$/,
                use: [
                    require.resolve('style-loader'),
                    {
                        loader: require.resolve('css-loader'),
                        options: {
                            modules: false,//關閉
                        },
                    },
                    {
                        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',
                                }),
                            ],
                        },
                    }
                ],
            },

css-loader的使用