webpack-bundle-analyzer --vue

// 1. 安装命令
cnpm install webpack-bundle-analyzer --save-dev
或
yarn add -D webpack-bundle-analyzer

//2.使用
// vue.config.js文件内
const BundleAnalyzerPlugin = require('webpack-bundle-analyzer').BundleAnalyzerPlugin

configureWebpack: {
plugins: [
//新增
new BundleAnalyzerPlugin()
]
}