npm install antd --save 后無效果
可以嘗試為webpack.config.js的module段添加以下代碼

{
          test: /\.(js|jsx)$/,
          exclude:/node_modules/,
          loader: 'babel',
          query: {
            presets: ['react', 'es2015', 'stage-0'],
            plugins: [
              ['import',{
                libraryName: 'antd',
                style: 'css'
              }]
            ]
          }
        },