2024-10-24 main.js:6 Uncaught TypeError: app is not a function ==》写法错误

vue代码如下：

// main.js
import { createApp } from 'vue'
import './style.css'
import App from './App.vue'
const app = createApp(App);

app().mount('#app')

报错：

原因：app().mount('#app')写法有误

正确写法应该去掉这个（）

import { createApp } from 'vue'
import './style.css'
import App from './App.vue'
const app = createApp(App);

app.mount('#app')