目錄檔案：

index.js：

import Vue from 'vue'
import Router from 'vue-router'
import news from '@/components/news/news'
import done from '@/components/news/pages/done'
import nodone from '@/components/news/pages/nodone'

Vue.use(Router)

export default new Router({
  routes: [
    {
    	//路由路徑
      path: '/news',
      name: 'news',
      component:news,
      redirect:"/news/nodone",
      children:[
             {path:"done",component:done},
             {path:"nodone",component:nodone}
      ]
    }
  ]
})
 

done.vue：

 <template>
 	<div class="done">
 	   <ul class="list-group">
 	   	  <li class="list-group-item" v-for="item in doneList">
 	   	     {{item.content}}
 	   	  </li>
 	   </ul>
 	</div>
 </template>
 <script>
 	export default{	
 		name:"done",
		props:["doneList"]
	}
 </script>
 <style>
 	
 </style>
 

mheader.vue：

<template>
	<div class="container">
		<div class="row">
		    <div class="col-xs-8">
		         <input type="text" class="form-control" v-model="textValue"/>
		    </div>
		    <div class="col-xs-4">
		         <button class="btn btn-primary" @click="addInfo">傳送</button>
		    </div>
		</div>
	</div>
</template>
<script>
	export default{		
		name:"mheader",
		methods:{
			addInfo(){
				this.$emit("addinfo",this.textValue)
				this.textValue=""
			}		
		},
		data(){
			return{
				textValue:""
			}
		}
	}
</script>
<style scoped="scoped">
	
</style>
 

nodone.vue：

 <template>
 	<div class="nodone">
 	   <ul class="list-group">
 	   	  <li class="list-group-item" v-for="(item,index) in nodoneList" @click="del">
 	   	     {{item.content}}
 	   	  </li>
 	   </ul>
 	</div>
 </template>
 <script>
 	export default{		
 		name:"nodone",
		props:["nodoneList"],
		methods:{
			del(index){
				this.$emit("del",index)
			}
		}
	}
 </script>
 <style>
 	
 </style>

tabber.vue：

<template>
	<div class="tabber">
         <div class="item">
         	<!--路由路徑-->
         	<router-link to="/news/nodone">
          		<span>未完成</span>
         	    <span class="badge">{{nodoneListLength}}</span>
         	</router-link>
         </div>
         <div class="item">
         	<router-link to="/news/done">
          		<span>完成</span>
         	    <span class="badge">{{doneListLength}}</span>
         	</router-link>
         </div>
	</div>
</template>
<script>
	export default{		
		props:["nodoneListLength","doneListLength"],
		name:"tabber"
	}
</script>
<style scoped="scoped">
	.tabber{
		display: flex;
        height: 40px;
        line-height: 40px;
        border-bottom: 1px solid black;
        text-align: center;
        margin-top: 10px;
	}
	.tabber .item{
		flex: 1;
	}
</style>

news.vue:

<template>
	<div class="news">	
	   <mheader @addinfo="addinfo"></mheader>
	   <mtabber :nodoneListLength="nodoneListLength" :doneListLength="doneListLength"></mtabber>
	   
	   <router-view :nodoneList="nodoneList" :doneList="doneList" @del="del"></router-view>
	</div>
</template>
<script>
	import mheader from "./pages/mheader"
	import mtabber  from "./pages/tabber"
	
	export default{		
		name:"news",
		components:{
			mheader,
			mtabber
		},
		data(){
			return{
				nodoneList:[
				     {id:1,content:"內容1"},
				     {id:2,content:"內容2"},
				     {id:3,content:"內容3"},
				     {id:4,content:"內容4"}
				],
				doneList:[]			
			}		
		},
		computed:{
				nodoneListLength(){
					return this.nodoneList.length
				},
				doneListLength(){
					return this.doneList.length
				}
		},
		methods:{
			addinfo(txt){
				var obj={
					id:this.nodoneList.length-1+2,
					content:txt
				}
				this.nodoneList.push(obj)
			},
			del(index){			    
				var obj=this.nodoneList.splice(index,1)
				this.doneList.push(obj[0])
			}
		}
	}
</script>
<style scoped="scoped">

</style>