基于vue-clinpmrunbuild之后vendor.js文件过大的解决方法

externals: {
 vue: 'Vue',
 'element': 'element-ui',
 'axios':'axios',
 },

cnpm install --save-dev compression-webpack-plugin

 // Gzip off by default as many popular static hosts such as
 // Surge or Netlify already gzip all static assets for you.
 // Before setting to `true`, make sure to:
 // npm install --save-dev compression-webpack-plugin
 productionGzip: true,
 productionGzipExtensions: ['js', 'css'],

 // Run the build command with an extra argument to
 // View the bundle analyzer report after build finishes:
 // `npm run build --report`
 // Set to `true` or `false` to always turn it on or off
 bundleAnalyzerReport: process.env.npm_config_report