原文：https://www.cnblogs.com/supery007/p/8352412.html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<style>
ul li {
list-style: none;
display: inline-block;
border: 1px solid dodgerblue;
height: 30px;
line-height: 30px;
width: 120px;
text-align: center;
}
</style>
<!-- 引用vue.js文件 -->
<script src="vue.js"></script>
</head>
<div id="app">
<ul>
<!-- 给li标签绑定click时间,点击该li标签将索引传给函数重新赋值给num-->
<li v-for="(item,index) in tabs" :class="{active:index == num}" @click="tab(index)" :key='index'>
{{item}}{{index}}
</li>
</ul>
<div class="tabCon">
<!-- 循环遍历tabContents数组中的元素,v-show绑定事件,当循环的索引等于num中的值,显示该itemCon值 -->
<div v-for='(itemCon,index) in tabContents' v-show="index == num" :key='index'>
{{itemCon}}{{index}}
</div>
</div>
</div>
<!--这里是js代码-->
<script type="text/javascript">
var vm = new Vue({
el: '#app',
data: {
tabs: ["标题一", "标题二","标题三"],
tabContents: ["内容一", "内容二","内容三"],
num: ''
},
methods: {
tab:function (index) {
this.num = index;
}
}
});
</script>
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