react修改webpack.config.js支持less

     const lessRegex = /\.less$/;
      const lessModuleRegex = /\.module\.less$/;
    
    
    
    {
            test:lessRegex,
            exclude:lessModouleRegex,
            use:getStyleLoaders(
              {
                importLoaders: 3,
                sourceMap: isEnvProduction && shouldUseSourceMap
            },
            'less-loader'
            ),
            sideEffects:true
        },
        {
          test:lessRegex,
          exclude:lessModouleRegex,
          use:getStyleLoaders(
            {
              importLoaders: 3,
              sourceMap: isEnvProduction && shouldUseSourceMap,
              modules: {
                getLocalIdent: getCSSModuleLocalIdent
            }
          },
          'less-loader'
          )
        },
        
        安装less-loader yarn add less-loader --save
        安装less yarn add less -save