重构vue3-createApp

import { createRenderer } from '@vue/runtime-core'



const renderer = createRenderer({

})



export function createApp(root) {
    return renderer.createApp(root)
}

import { defineComponent, h } from "@vue/runtime-core"
export default defineComponent({
    render() {
        const vnode = h('div')
        return vnode
    }
})

import { createApp } from '/index'
import App from './app'





createApp(App).mount('#app')