vue3使用element ui的方法实例

npm install element-plus --save

import { createApp } from "vue";
import App from "./App.vue";
import router from "./router";
import store from "./store";
import ElementPlus from 'element-plus';
import 'element-plus/theme-chalk/index.css';
 
import locale from 'element-plus/lib/locale/lang/zh-cn'
createApp(App).use(store).use(router).use(scroll).use(ElementPlus, { locale }).mount("#app");
 

<template>
  <div class="Select">
    <el-select v-model="value" filterable placeholder="请选择">
      <el-option
        v-for="item in options"
        :key="item.value"
        :label="item.label"
        :value="item.value"
      />
    </el-select>
  </div>
</template>

<script lang="ts">
import { defineComponent, ref } from "vue";
 
export default defineComponent({
  name: "Select",
  props: {},
  setup() {
    const value = ref("");
    const options = [
      {
        value: "上海市",
        label: "上海市",
      },
      {
        value: "杭州市",
        label: "杭州市",
      },
      {
        value: "北京市",
        label: "北京市",
      },
      {
        value: "天津市",
        label: "天津市",
      },
      {
        value: "重庆市",
        label: "重庆市",
      },
    ];
    return {
      value,
      options,
    };
  },
});
</script>

npm install element-ui -S

import { createApp } from 'vue'
import App from './App.vue'
import router from './router'
import store from './store'
// import '@/assets/scss/reset.scss'

import ElementUI from 'element-plus'
import 'element-plus/lib/theme-chalk/index.css'

createApp(App).use(store).use(router).use(ElementUI).mount('#app')