hmvue/babel.config.js

module.exports = {
    presets: [
        '@vue/app'
    ],
    plugins: [
        [
            "component",
            {
                "libraryName": "element-ui",
                "styleLibraryName": "theme-chalk"
            }
        ],
        ["import", {
            "libraryName": "vant",
            "libraryDirectory": "es",
            "style": true
        }]
    ]
};