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jq实例加入购物车-4.2
太早的博客
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实例

<!DOCTYPE html>
<html>
<head>
	<title>hello world!</title>
	<script src="https://code.jquery.com/jquery-3.3.1.min.js"></script>
	<style type="text/css">
	* {margin: 0px auto;padding: 0px;}
    .top {width: 402px;height: 35px;line-height: 35px;text-align:center;margin-top: 50px;
          background: #C40000;color:#fff;}
    .main {width: 400px;height: 400px;border: 1px solid #C40000;}
    p {width: 400px;height: 26px;margin-top:10px;}
    b {width: 90px;height: 26px;line-height: 26px;text-align: center;font-size: 12px;color:#838383;
       border: 1px solid #ccc;float: left;margin-left: 5px;}
    span {width: 90px;height: 26px;line-height: 26px;text-align: center;font-size: 12px;color:#838383;
          border: 1px solid #ccc;display: block;float: left;margin-left: 5px;}
    span:hover {cursor: pointer;}
    button {width: 120px;height: 35px;background: #C40000;color: white;border: 0px;}
    button:hover {cursor: pointer;}
    .notice{border:0px;}
    .notice+input{width:60px;margin-left: 6px;text-align: center;}
    .select{border: 2px solid red;width: 88px;height: 24px;color: red;line-height: 24px;}
	</style>
</head>
<body>
	<div class="top">请选择信息后加入购物车</div>
	<div class="main">
	    <p class="item" name="version">
	      <b class="notice">版本</b>
	      <span>ONE A2001</span>
	      <span>ONE A0001</span>
	      <span>ONE A1001</span>
	    </p>
	    <p class="item" name="color">
	      <b class="notice">机身颜色</b>
	      <span>白色</span>
	      <span>黑色</span>
	      <span>金色</span>
	    </p>
	    <p class="item" name="type">
	      <b class="notice">套餐类型</b>
	      <span>标配</span>
	      <span>套餐一</span>
	      <span>套餐二</span>
	    </p>
	    <p class="item" name="ram">
	      <b class="notice">运行内存</b>
	      <span>2GB</span>
	      <span>3GB</span>
	      <span>4GB</span>
	    </p>
	    <p class="item" name="rom">
	      <b class="notice">机身内存</b>
	      <span>16GB</span>
	      <span>32GB</span>
	      <span>64GB</span>
	    </p>
	    <p class="item" name="location">
	      <b class="notice">产地</b>
	      <span>中国大陆</span>
	      <span>港澳台</span>
	    </p>
	    <p class="item" name="price">
	      <b class="notice">价格</b>
	      <span>999元抢购</span>
	    </p>
	    <p class="item1" name="num">
	      <b class="notice">数量</b>
	      <input type="number" value="1" >
	    </p>

	    <p style="margin-top:30px;margin-left:95px;">
	      <button class="bu1" id='sub'>加入购物车</button>
	    </p>
	</div>
	<script>
		$(function(){
			$('span').click(function(){
				if($(this).hasClass('select')){
					$(this).removeClass('select');
				}else{
					$(this).addClass('select').siblings("span").removeClass('select');
				}
			})
			$('#sub').click(function(){
				var form={};
				var flag=true;
				$('.item').each(function(){
					if($(this).children('span.select').length !=1){
						flag=false;
					}else{
						var key=$(this).attr('name');
						var value=$(this).children('span.select').html();
						form[key]=value;
					}
				})
				if($('.item1 input').val()<=0){
					flag=false;
				}else{
					form['num']=$('.item1 input').val();
					console.log(form)
				}
				if(flag){
					alert('加入购物车')
				}else{
					alert('未选中')
				}
			})
		})
	</script>
</body>
</html>

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Correction status：Uncorrected

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