Tab切換
- 點擊之後更改索引：
v-on:click='change(index)
- 點擊之後更改索引：- 顏色變化
v-bind:class='currentIndex==index?"active":""'，active是css裏的類。 - 圖片顯示：v-bind:class=‘currentIndex==index?“current”:""’，和當前索引相等的設置爲block屬性。
<!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
}
.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>
<li v-on:click='change(index)' v-bind:class='currentIndex==index?"active":""' :key='item.id' v-for='(item,index) in list'>{{item.title}}</li>
</ul>
<div v-bind:class='currentIndex==index?"current":""' :key='item.id' v-for='(item, index) in list'>
<img bind:src="item.path">
</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, // 選項卡當前的索引
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){
// 在這裏實現選項卡切換操作：本質就是操作類名
// 如何操作類名？就是通過currentIndex
this.currentIndex = index;
}
}
});
</script>
</body>
</html>