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JQuery点击商品选中效果-2019年1月22日
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Original
648 people have browsed it

添加判断是否满足加入购物车条件来控制按钮的可用状态


实例

<!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: 1px solid #C40000;
	}
	.bu2{
		background: #ccc;
	}
	

</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 bu2" id='sub' disabled>加入购物车</button>
		</p>		
  </div>
  <script>
		var data = [
				{version: 'ONE A2001'},
				{version: 'ONE A0001'},
				{version: 'ONE A1001'}
			];
	
		$(document).ready(function () {
			
			for (let index = 0; index < data.length; index++) {
				$("p[name='version']").append("<span>"+data[index].version+"</span>");
			}

			$(".item>span,.item1>input").on("click keyup", function () {
				
				if ($(this).hasClass("select")) {
					$(this).removeClass("select");
				}else{
					$(this).addClass("select").siblings(".select").removeClass("select");
				}
				
				if($(".item").children(".select").length < 7) {
					$("#sub").addClass("bu2");
					$("#sub").attr("disabled",true);
				} else {
					$("#sub").removeClass("bu2");
					$("#sub").removeAttr("disabled");
				}			
				if($(".item1 input").val() <=0){
					$("#sub").addClass("bu2");
					$("#sub").attr("disabled",true);
					
				}	
			});
	
			
	
			$(".bu1").click(function (e) { 
				let from = {};
				let flag = true;
				//遍历每一个item类的标签
				
				$(".item").each(function () {
					if ($(this).children(".select").length != 1) {
						flag = false;
						alert($(this).find(".notice").text()+"未选中")
						return false;		
					} else {
						let key = $(this).attr("name"); 
						let val = $(this).find(".select").text();
						from[key] = val;
					}			
				});
	
				if($(".item1 input").val() <=0){
					flag = false;
					alert("数量不能小于0");
				}else{
					from["number"] = $(".item1 input").val();
				}
				if(flag){
					console.log(from)
					alert("加入购物车成功");
					$(".main span").removeClass("select");
				}
				
			});

			
		});
	</script>
</body>
</html>

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Correction status:Uncorrected

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