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1.点击商品选中效果(要求:控制台输出商品详情):2019年1月22号作业
连界现代周伟的博客
Original
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实例(jQuery添加购物车效果)

<!DOCTYPE HTML>
<html>
<head>
<title>点击商品选中效果</title>
<meta charset="utf-8"/>
 <link rel="icon" type="image/x-icon" href="images/2.png"> 
 <script src="https://code.jquery.com/jquery-3.1.1.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;
	}

	.select {
		border: 2px solid #C40000;
		width: 88px;
		height: 24px;
		line-height: 24px;
		color: #C40000;

	}

</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" style="width:40px;height:26px;">
		</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')
		}


	 })
	 $('button').click(function(){
		if($('span.select').length === 7 && $('input').val() > 0) { //选取所有带select类型的span元素,判断这样的元素个数等于7个,并且表单input数量元素的值大于0时
			console.log($("p[name='version']").find('span.select').text())
                        console.log($("p[name='color']").find('span.select').text())
                        console.log($("p[name='type']").find('span.select').text())
                        console.log($("p[name='ram']").find('span.select').text())
                        console.log($("p[name='rom']").find('span.select').text())
                        console.log($("p[name='location']").find('span.select').text())
                        console.log($("p[name='price']").find('span.select').text())
			alert('成功加入购物车')
		} else {
			alert('客官,您还有什么没有选择吧?')
		}
        
	 })
	 

   })
  </script>
</body>
</html>

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