1.创建Vue项目后目录如下：

2.HomeView.vue

  <div class="home">
    <img alt="Vue logo" src="../assets/logo.png">
    <el-button type="success" round>Success</el-button>
    <HelloWorld msg="Welcome to Your Vue.js App"/>
  </div>
</template>

<script>
// @ is an alias to /src
import HelloWorld from '@/components/HelloWorld.vue'

export default {
  name: 'HomeView',
  components: {
    HelloWorld
  },data(){
  return {
    msg: "hello bro"
  }
  }
}
</script>

3.main.js

import App from './App.vue'
import router from './router'
import ElementPlus from 'element-plus'
import 'element-plus/dist/index.css'
import store from "core-js/internals/shared-store";
const app = createApp(App)
//createApp(App).use(router).mount('#app')
createApp(App).use(store).use(router).use(ElementPlus).mount('#app')```
4.package.json
```{
  "name": "vue1",
  "version": "0.1.0",
  "private": true,
  "scripts": {
    "serve": "vue-cli-service serve",
    "build": "vue-cli-service build"
  },
  "dependencies": {
    "core-js": "^3.8.3",
    "element-plus": "^2.2.16",
    "vue": "^3.2.13",
    "vue-router": "^4.0.3"
  },
  "devDependencies": {
    "@vue/cli-plugin-babel": "~5.0.0",
    "@vue/cli-plugin-router": "~5.0.0",
    "@vue/cli-service": "~5.0.0",
    "babel-plugin-import": "^1.13.5"
  },
  "browserslist": [
    "> 1%",
    "last 2 versions",
    "not dead",
    "not ie 11"
  ]
}

5.vue.config.js

module.exports = defineConfig({
  transpileDependencies: true
})