Vue多系统切换实现方案

<template>
 <div id="app">
<div class="allWapper">
 <!-- logo -->
 <div class="myLogo">
  <img src="/static/mylogo.png">
 </div>
 <!-- 顶部tabs -->
 <el-tabs v-model="activeName" @tab-click="handleClick">
 <el-tab-pane class="temp" label="VUE" name="first">
  <iframe v-if="ifArr.first" class="ifa" scrolling=auto src="http://panjiachen.github.io/vue-element-admin/#/dashboard" frameborder="0"></iframe>
 </el-tab-pane>
 <el-tab-pane class="temp" label="SF" name="second">
  <iframe v-if="ifArr.second" class="ifa" scrolling=auto src="https://segmentfault.com/" frameborder="0"></iframe>
 </el-tab-pane>
 <el-tab-pane class="temp" label="百度" name="third">
  <iframe v-if="ifArr.third" class="ifa" scrolling=auto src="https://www.baidu.com/" frameborder="0"></iframe>
 </el-tab-pane>
 </el-tabs>

</div>
<!-- </div> -->
 <!-- <router-view/> -->
 </div>
</template>

<script>
export default {
 name: 'App',
 data(){
 return{
  activeName: 'first',
  ifArr:{
   first:true,
   second:false,
   third:false
  }
 }
 },
 methods:{
  handleClick(tab, event) {
  let flagName=tab.name
  this.ifArr[flagName]=true
  }
 }
}
</script>

<style>
body{
 margin:0;
 padding:5px;
}
.ifa{
 width:100%;
height:100%;
 }
 .el-tabs__content{
 border: 1px solid red;
 border-top:none;
 position: absolute;
 top: 62px;
 left: 0;
 bottom: 0;
 right: 0;
 // width:100%;
 // height:80%;
 }
 .allWapper{
 display:flex;
 border-bottom:1px solid #e4e7ed;
 }
 .el-tabs__header{
 margin-bottom:0px;
 }
 .el-tabs__header .el-tabs__item{
 margin:8px 0;
 font-size:16px;
 padding-left:29px;

 }
 .temp{
  width:100%;
 height:100%;
 }
.myLogo{
  width: 200px;
 height: 53px;
 margin-right:35px;
}
.myLogo img{
 width:100%;
}
</style>