Vue3.0.0

//main.js
import?{createApp}?from?'vue'
import?App?from?'./App.vue'
import?router?from?'./router'
import?store?from?'./store'
import?ElementUI?from?'element-plus'
import?'element-plus/lib/theme-chalk/index.css'
import?'./static/css/base.less'
import?'./globalComponents'

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

globalComponent/index.js

import?{?createApp?}?from?'vue'
import?App?from?'../App.vue'
import?AccountLogin?from?"../components/accountLogin/AccountLogin"

createApp(App).component('AccountLogin',?AccountLogin)

在App.vue中調用組件

<div>
??<accout-login></accout-login>
</div>

無效，結果顯示不了組件，不知道哪出問題，老師vue3該怎么改寫