Vue3+@cli+Vant4

vantUI在 main.js中的配置:

import { createApp } from 'vue'
import App from './App.vue'
import router from './router'
import store from './store'

import vant from 'vant';
// 2. 引入组件样式
import 'vant/lib/index.css';

const app = createApp();

// 3. 注册你需要的组件
app.use(vant);
createApp(App).use(store).use(router).use(vant).mount('#app')

Vant4文档里有坑,import vant from 'vant';这句还有这句 app.use(vant); createApp(App).use(store).use(router).use(vant).mount('#app') 都很重要