vant/vue3中按需引入组建后不起作用

import {createApp} from "vue";
import App from "./App.vue";
import router from "./router";
import store from "./store";
import {Button,Rate} from "vant";            //这里可以一起引入
const app = createApp(App);
app.use(store);
app.use(router);
//app.use(Button,Rate); 错误写法
app.use(Button);
app.use(Rate);            //这里不能放在一起
app.mount("#app");