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+<!DOCTYPE html>
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+<html lang="en">
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+
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+<head>
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+ <meta charset="UTF-8">
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+ <meta name="viewport" content="width=device-width, initial-scale=1.0">
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+ <title>Document</title>
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+ <script src="./js/vue.js"></script>
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+ <style>
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+ .tab-page{
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+ width: 600px;
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+ height: 400px;
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+ border:3px solid #000;
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+ margin: 100px auto;
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+ }
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+ .tab-nav{
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+ height: 60px;
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+ background-color: #333;
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+ }
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+ .tab-nav .tab-item{
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+ float: left;
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+ height: 60px;
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+ width: 120px;
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+ text-align: center;
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+ line-height: 60px;
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+ color: #fff;
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+ }
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+ .tab-nav .tab-item.active{
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+ background-color: #ddd;
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+ color: #000;
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+ }
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+ .tab-content{
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+ padding:20px;
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+ }
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+ /* .tab-content .tab-content-item{
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+ display: none;
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+ }
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+ .tab-content .tab-content-item.active{
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+ display: block;
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+ } */
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+ </style>
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+</head>
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+
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+<body>
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+ <div id="app" class="tab-page">
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+ <div class="tab-nav">
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+ <!-- <div v-bind:class="['tab-item',{'active':activeIndex==0}]" @click="changeTab(0)">第一节课</div>
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+ <div :class="['tab-item',{'active':activeIndex==1}]" @click="changeTab(1)">第二节课</div>
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+ <div :class="['tab-item',{'active':activeIndex==2}]" @click="changeTab(2)">第三节课</div> -->
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+ <div v-bind:class="['tab-item',{'active':activeIndex==0}]" @click="activeIndex=0">第一节课</div>
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+ <div :class="['tab-item',{'active':activeIndex==1}]" @click="activeIndex=1">第二节课</div>
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+ <div :class="['tab-item',{'active':activeIndex==2}]" @click="activeIndex=2">第三节课</div>
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+ </div>
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+ <div class="tab-content">
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+ <div class="tab-content-item" v-if="activeIndex==0">第一节课的内容</div>
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+ <div class="tab-content-item" v-else-if="activeIndex==1">第二节课的内容</div>
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+ <div class="tab-content-item" v-else-if="activeIndex==2">第三节课的内容</div>
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+ </div>
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+ </div>
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+
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+ <script>
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+ new Vue({
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+ el:"#app",
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+ data:{
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+ activeIndex:0
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+ },
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+ methods:{
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+ // changeTab(index){
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+ // console.log(index)
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+ // this.activeIndex = index
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+ // }
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+ }
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+ })
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+ </script>
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+</body>
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+
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+</html>
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