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>
console
var vue = new Vue({
 el: "#tabItem",
 data: {
 
 },
 components: {
  'my-tab': {
  template: '#tab',
  data: function() {
   return {
   tabs: ["第一项", "第二项"],
   tabContents: ["第一项内容", "第二项内容"],
   num: 0,
   tabItem: "",
   tabContent: ""
   }
  },
  methods: {
   //切换滑块
   toggle: function(index) {
   this.num = index;
   },
   //添加滑块
   addItem: function() {
   if (this.tabItem == "" || this.tabContent == "") {
    alert("填写完整的名称和内容");
   } else {
    this.tabs.push(this.tabItem);
    this.tabContents.push(this.tabContent);
   }
   },
   //双击删除滑块
   del: function(index) {
   this.tabs.splice(index, 1);
   this.tabContents.splice(index, 1)
   },
   //编辑选项内容
   editContent: function(index, value) {
   this.tabContents[index] = value;
   }
  }
  }
 }
 });
<div id="tabItem">
 <my-tab></my-tab>
 </div>

 <!--组件模板-->
 <script type="text/template" id="tab">
 <div id="tabPanel">
  <div class="tab">
  <ul>
   <li v-for="(value, index) in tabs" :class="{active: index == num }" @mouseover="toggle(index)" @dblclick="del(index)">{{value}}</li>
  </ul>
  </div>
  <div class="content">
  <div class="box" v-for="(value, index) in tabContents" v-show="index == num" contenteditable="true" @blur="editContent(index,value)">{{value+index}}</div>
  </div>
  <label>添加滑块名称:<input type="text" v-model="tabItem" class="itemname"></label><br>
  <label>添加滑块内容:<input type="text" v-model="tabContent" class="itemcontent"></label><br>
  <input type="button" value="添加选项" @click="addItem()" class="addbtn">
 </div>
 </script>
 <!--组件模板-->
* {
  margin: 0;
  padding: 0;
 }
 
 #tabPanel .itemname {
  height: 40px;
  width: 180px;
  margin-bottom: 10px;
 }
 
 #tabPanel .itemcontent {
  height: 40px;
  width: 180px;
 }
 
 #tabPanel .addbtn {
  width: 185px;
  height: 40px;
  margin:10px 60px;
 }
 
 #tabPanel .active {
  background: #eee;
 }
 
 #tabPanel {
  height: 340px;
  width: 500px;
  margin: 0 auto;
 }
 
 #tabPanel .tab {
  height: 40px;
  background: #ccc;
  margin-top: 10px;
 }
 
 #tabPanel .tab ul li {
  list-style: none;
  float: left;
  width: 80px;
  height: 40px;
  text-align: center;
  line-height: 40px;
 }
 
 #tabPanel .content {
  height: 300px;
  width: 500px;
  background: #eee;
 }

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