挂载元素

1. $mount

<div ref="qwref" id ='qw'/>
import("./vue4.vue").then(component => {
       new Vue(component.default).$mount('#qw')
 }

<div ref="qwref" id ='qw'/>
import("./vue4.vue").then(component => {
      const cpt = Vue.extend(component.default);
      new cpt().$mount("#qw")
 }

2. el

   var temp = component.default;
   temp.el = "#qw"
   new Vue(temp)

<div ref="qwref" id ='qw'/>
import("./vue4.vue").then(component => {
      const cpt = Vue.extend(component.default);
      new cpt(  el: this.$refs.qw)
 }

以上挂载写法不会被组件当做子组件进行加载

3.动态组件,参考官方文档 动态组件