<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Document</title>
<style type="text/css">
body {
font-size: 14px;
font-family: "Lantinghei SC Extralight", Arial;
}
ul {
padding: 0;
margin: 0;
list-style: none;
}
a {
text-decoration: none;
}
img {
vertical-align: top;
}
#wrap {
760px;
height: 260px;
margin: 100px auto;
padding: 145px 120px 95px;
background: url(img/bg.jpg) no-repeat 0 0;
}
#section {
760px;
height: 260px;
-moz-box-shadow: 0px 0px 4px rgba(0, 0, 0, .2);
box-shadow: 0px 0px 4px rgba(0, 0, 0, .2);
}
#choose {
760px;
height: 50px;
margin: 0 auto;
background: url(img/nav_bg.png) no-repeat 0 0;
line-height: 50px;
text-indent: 21px;
}
#type {
100%;
height: 210px;
background: url(img/type_bg.png) no-repeat 0 0;
padding: 17px 0 16px 28px;
}
#type li {
height: 44px;
color: #8a8a8a;
line-height: 44px;
}
#type a {
margin: 0 12px 0 11px;
color: #000;
}
#choose mark {
position: relative;
display: inline-block;
height: 24px;
line-height: 24px;
border: 1px solid #28a5c4;
color: #28a5c4;
margin: 12px 5px 0;
background: none;
padding: 0 30px 0 6px;
text-indent: 0;
}
#choose mark a {
position: absolute;
top: 3px;
right: 2px;
display: inline-block;
18px;
height: 18px;
background: #28a5c4;
color: #fff;
line-height: 18px;
font-size: 16px;
text-align: center;
}
.active {
background: rgb(40, 165, 196);
}
</style>
<script src="https://cdn.jsdelivr.net/npm/vue/dist/vue.js"></script>
<script type="text/javascript">
let data = [{
title: '品牌',
index: -1,
list: ["苹果", "小米", "锤子", "魅族", "华为", "三星", "OPPO", "vivo", "乐视", "360", "中兴", "索尼"]
},
{
title: '尺寸',
list: ["3.0英寸以下", "3.0-3.9英寸", "4.0-4.5英寸", "4.6-4.9英寸", "5.0-5.5英寸", "6.0英寸以上"]
},
{
title: '系统',
list: ["安卓", "(", "Android", ")", "苹果", "(", "IOS", ")", "微软", "(", "WindowsPhone", ")", "无", "其他"]
},
{
title: '网络',
list: ["联通3G", "双卡单4G", "双卡双4G", "联通4G", "电信4G", "移动4G"]
}
]
</script>
</head>
<body>
<div id="wrap">
<section id="section">
<nav id="choose">
你的选择:
<!-- <mark>锤子<a href="javascript:;">x</a></mark> -->
<mark v-for="item in choose">
{{item}}
<a href="javascript:;">x</a>
</mark>
</nav>
<ul id="type">
<li v-for="item,index in dataList">
{{item.title}}:
<a
href="javascript:;"
v-for="option,i in item.list"
v-bind:class="{active: item.index === i}"
@click="addChooseHandle(option,index,i)"
>{{option}}</a>
</li>
</ul>
</section>
</div>
<script type="text/javascript">
/*
{
0:'苹果',
1:3.0
}
key值不重复
key值就是每一行的下标
思路:用对象来存每一行选中的标签,把每一行下标作为key值
需要给数据的每一行添加一个属性,属性用来记录选中的标签
*/
//需要处理data
//item表示data里面的每一个对象
//item.index表示新添的属性并且属性的值为-1
data.forEach(item => item.index= -1)
console.log(data);
new Vue({
el:'#wrap',
data: {
dataList: data,
choose: {}
},
methods: {
addChooseHandle: function(option, index, i){
console.log(option,index)
//这样给对象添加属性并不会响应
//this.choose[index] = option;
//this.option 对象
//index key值
//option value值
this.$set(this.choose,index,option)
//找到操作的一行,把这一行的数据中的index,设置为点击的标签的下标
this.dataList[index].index = i;
}
}
})
</script>
</body>
</html>
