use vant

src/main.ts

@@ -1,6 +1,7 @@
 import './assets/main.css';
 import * as ElementPlusIconsVue from '@element-plus/icons-vue';
-import 'amfe-flexible'
+import 'amfe-flexible';
+import Vant from 'vant'
 
 import { createApp } from 'vue';
 import { createPinia } from 'pinia';
@@ -8,6 +9,7 @@ import { createPinia } from 'pinia';
 import App from './App.vue';
 import router from './router';
 const app = createApp(App);
+app.use(Vant);
 for (const [key, component] of Object.entries(ElementPlusIconsVue)) {
   app.component(key, component);
 }