<!-- //模板式编程 -->
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
<style type="text/css">
.tab ul {
overflow: hidden;
padding: 0;
margin: 0;
}
.tab ul li {
box-sizing: border-box;
padding: 0;
float: left;
width: 100px;
height: 45px;
line-height: 45px;
list-style: none;
text-align: center;
border-top: 1px solid blue;
border-right: 1px solid blue;
cursor: pointer;
}
.tab ul li:first-child {
border-left: 1px solid blue;
}
.tab ul li.active {
background-color: orange;
}
.tab div {
width: 500px;
height: 300px;
display: none;
text-align: center;
font-size: 30px;
line-height: 300px;
border: 1px solid blue;
border-top: 0px;
}
.tab div.current {
display: block;
}
</style>
</head>
<body>
<div id="app">
<div class="tab">
<ul>
<!-- :class='"currentIndex == index?"active":"' -->
<li @click = 'change(index)' :class='currentIndex == index?"active":""' :key = 'item.id' v-for='(item,index) in list'>{{item.title}}</li>
</ul>
<!-- :class='currentIndex == index?"current":""' -->
<div :key = 'item.id' :class='currentIndex == index?"current":""' v-for = '(item,index) in list'>
<img :src="item.path" alt="">
</div>
</div>
</div>
<script type="text/javascript" src="js/vue.js"></script>
<script type="text/javascript">
var vm = new Vue({
el:'#app',
data:{
currentIndex:0,//当前选项卡索引
list:[{
id:1,
title:'apple',
path:'img/apple.png'
},
{
id:2,
title:'orange',
path:'img/orange.png'
},
{
id:3,
title:'lemon',
path:'img/lemon.png'
}]
},
methods:{
change:function(index){
//在这里实现选项卡切换操作
// 本质就是操作类名
// 如何操作类名
this.currentIndex = index;
}
}
})
</script>
</body>
</html>
