<template>
  <el-container style="height: 98vh">
    <el-header>
      <component :is="top" @update-show="top_change_middle_com"></component>
    </el-header>
    <el-container>
      <el-aside width="200px">
        <component :is="left" @change_middle="left_change_middle_com"></component>
      </el-aside>
      <el-main>
        <component :is="middle"></component>
      </el-main>
    </el-container>
  </el-container>
</template>

<script src="./index.js"></script>

<style src="./index.css"></style>