![[Web front-end] Node.js quick start](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
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Teacher's comments：
Collection
Collection
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title></title>
<style>
*{
margin: 0;
padding: 0;
}
.car{
width: 390px;
height: 500px;
border:1px solid #B30702;
margin: 100px auto;
}
.top{
width: 390px;
height: 45px;
background:#B30702;
color: white;
text-align: center;
line-height: 45px;
}
.item,.item1{
margin-top: 20px;
}
.item p,.item1 p{
display: inline-block;
height: 30px;
line-height: 30px;
width: 70px;
font-size: 14px;
text-align: center;
}
.item1 input{
width: 90px;
height: 30px;
text-align: center;
}
span{
width: 90px;
height: 30px;
display: inline-block;
border:1px solid #ccc;
margin-left: 5px;
line-height: 30px;
text-align: center;
font-size: 14px;
}
button{
width: 190px;
height: 45px;
background:#B30702 ;
display:block;
margin: 20px auto;
color: white;
border: none;
outline: none;
}
.select{
border:1px solid #B30702;
}
</style>
<script src="js/jquery-3.3.1.min.js"></script>
</head>
<body>
<div class="car">
<div class="top">加入购物车</div>
<div class="item" name='Edition'>
<p>版本</p>
<span>ONE A2001</span>
<span>ONE A2002</span>
<span>ONE A2003</span>
</div>
<div class="item" name='frameColor'>
<p>机身颜色</p>
<span>白色</span>
<span>粉色</span>
<span>蓝色</span>
</div>
<div class="item" name='PackageType'>
<p>套餐类型</p>
<span>官方标配</span>
<span>套餐一</span>
<span>套餐二</span>
</div>
<div class="item" name='Memory'>
<p>机身内存</p>
<span>16G</span>
<span>32G</span>
<span>64G</span>
</div>
<div class="item" name='Place'>
<p>产地</p>
<span>中国大陆</span>
<span>港澳台</span>
</div>
<div class="item" name='price'>
<p>价格</p>
<span>999元抢购</span>
</div>
<div class="item1" name='num'>
<p>数量</p>
<input type="text" value="1" />
</div>
<button id="btn">加入购物车</button>
</div>
</body>
</html>
<script>
$(function(){
var obj={};
var flag=true;
$('span').click(function(){
if($(this).hasClass('select')){
$(this).removeClass('select');
flag = false;
}else{
$(this).addClass('select').siblings().removeClass('select');
flag = true;
}
})
$('#btn').click(function(){
$('.item').each(function(){ //children() 方法返回返回被选元素的所有直接子元素。
if($(this).children('span.select').length !=1){
flag = false;
} else {
var key = $(this).attr('name');
var val = $(this).children('span.select').text();
obj[key] = val;
}
})
if($('.item1 input').val() && $('.item1 input').val()>=1){
obj['num'] = $('.item1 input').val();
} else {
alert('数量没选');
}
if(flag){
console.log(obj);
}else {
alert('有选项没选');
}
})
})
</script>点击 "运行实例" 按钮查看在线实例