text: global.webpackmode = "prod"
  const config = require('./webpack.conf.js');
  
  module.exports = merge(config, {
      mode: "production",
      // 代码压缩插件
      optimization: {minimize: true},
      devtool: 'null',
      plugins: [new webpack.DefinePlugin({'process.env.NODE_ENV': JSON.stringify('production')})]
  });