angular.js构建单页面购物车

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原创最新推荐文章于 2026-08-11 19:41:38 发布 769 阅读 AI 写同款· GEO 优化 ›

前端使用Angular.js实现购物车功能本文旨在为前端开发者提供一个使用Angular.js实现购物车功能的完整指南。Angular.js框架的核心特性购物车功能的需求分析数据模型设计用户界面实现业务逻辑处理性能优化考虑首先介绍Angular.js和购物车功能的基本概念然后深入探讨实现购物车所需的核心技术接着通过实际代码示例展示完整实现最后讨论优化和扩展的可能性Angular.js：Google开发的前端MVC框架，用于构建动态单页应用购物车：电子商务网站中临时存储用户选择商品的容器数据绑定。阅读详情

<!doctype html>
<html lang="en">
<head>
	<meta charset="UTF-8">
	<title>购物车</title>
	<script src="../jquery.js"></script>
	<script src="angular.js"></script>
	<style>
      *{
      	padding:0;
      	margin:0;
      	font-family: '微软雅黑';
      }
      .shop-items ul{
      	list-style: none;
      	width: 100%;
      }
      .shop-items ul li{
      	display: inline-block;
      	width: 10%;
      	text-align: center;
      	height: 30px;
      	line-height: 30px;
      }
      .shop-items ul li p{
      	border-bottom: 1px solid #ccc;
      	border-left: 1px solid #ccc;
      }
      .shop-items ul li:last-child p{
      	border-right: 1px solid #ccc;
      }
      .shop-items ul li input{
      	padding:2px 5px;
      	margin-bottom: 5px;
      }

      .shop-buy,.shop-total{
      	width: 50%;
      	margin-left: 30%;
      	margin-top:20px;
      }
      .shop-buy span{
      	display: inline-block;
      	width: 180px;
      }
      .shop-buy input{
      	padding:5px 8px;
      }
      .shop-total{
      	font-size: 25px;
      	font-weight: bold;
      }
	</style>
</head>
<body>
	<div class="shop-view" ng-app="shopping" ng-controller="myCtrl">
		<div class="shop-items">             <!--ng-repeat写入数组中的数据-->
			<ul>
				<li ng-repeat="x in items">
					<p>{{x.name}}</p>
					<p>{{x.price}}/斤</p>
					<p><input type="button" value="购买" ng-click="buy($index);"></p>				
				</li>
			</ul>
		</div>
		<div class="shop-buy" ng-repeat="x in items">
			<p>
				<span>{{x.name}} : {{x.price|currency:"￥"}}</span><input type="button" value="-" ng-click="minus($index);"> <input type="text" ng-model="itemNum[$index]"> <input type="button" value="+" ng-click="add($index)"><span>　单品总价:{{x.price*itemNum[$index]|number:2}}元</span>
			</p>
		</div>
		<div class="shop-total">
			总价为:{{total|number:2}}元
		</div>
	</div>
	<script>
       var data=[
         {"name":"苹果","price":"12.35"},
         {"name":"香蕉","price":"8.9"},
         {"name":"榴莲","price":"20.5"},
         {"name":"电脑","price":"4000.9"},
         {"name":"手机","price":"2089.5"},
         {"name":"显示屏","price":"1223.35"},
         {"name":"冰箱","price":"3451.9"},
         {"name":"大金桔","price":"12.5"},
         {"name":"切糕","price":"888.8"},
         {"name":"大西瓜","price":"5.5"}
       ];
       var app=angular.module("shopping",[]);
       app.controller("myCtrl",function($scope){
          $scope.items=data;
          $scope.itemNum=[];
          $scope.total=0;
          var len=$scope.items.length;
          for(var i=0;i<len;i++){
             $scope.itemNum[i]=0;               //初始化ng-model中的值，另其为0
          }
          $scope.$watch("itemNum",function(){   //监听ng-model中的值的变化
          	$scope.getTotal();
          },true)
          $scope.buy=function(index){           //点击购买按钮时发生的事件
          	  $scope.itemNum[index]++;            
          }
          $scope.minus=function(index){         //减少数量
          	  $scope.itemNum[index]--;
          	  if($scope.itemNum[index]<=0){
          	  	$scope.itemNum[index]=0;
          	  }        	
          } 
          $scope.add=function(index){           //增加数量
          	  $scope.itemNum[index]++;
          }
          $scope.getTotal=function(index){                         //重新计算总价
          	$scope.total=0;
          	for(var j=0;j<len;j++){
          		$scope.total=$scope.total+$scope.itemNum[j]*$scope.items[j].price;  
          	}
          	return $scope.total;
          }
       })
	</script>
</body>
</html>