h5/babel.config.js

module.exports = {
  presets: [
    '@vue/cli-plugin-babel/preset'
  ],
  //配置开始
  plugins: [
    [
      "import",
      {
        libraryName: "vant",
        libraryDirectory: "es",
        style: true,
      },
      "vant",
    ],
  ],
  //结束
}