vue.config.js

const path = require('path')
const fs = require('fs')

const resolve = dir => {
  return path.join(__dirname, dir)
}

// 这里需要修改为你线上项目存放的路径
// 比如你打包的文件放到服务器的my-app文件夹，域名为a.com，则应改为
// http(s)://a.com/my-app/
const BASE_URL = ''

module.exports = {
  // Project deployment base
  // By default we assume your app will be deployed at the root of a domain,
  // e.g. https://www.my-app.com/
  // If your app is deployed at a sub-path, you will need to specify that
  // sub-path here. For example, if your app is deployed at
  // https://www.foobar.com/my-app/
  // then change this to '/my-app/'
  baseUrl: BASE_URL,
  // tweak internal webpack configuration.
  // see https://github.com/vuejs/vue-cli/blob/dev/docs/webpack.md
  chainWebpack: config => {
    config.resolve.alias
      .set('@', resolve('src')) // key,value自行定义，比如.set('@@', resolve('src/components'))
      .set('_c', resolve('src/components'))
      .set('_c', resolve('src/components'))
      .set('_conf', resolve('config'))
  }
}