angularJS实现简易购物车的方法
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2022-03-07 20:08:55
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本文主要和大家分享angularJS实现简易购物车的方法，希望能帮助到大家。
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>我的购物车</title>
<script type="text/javascript" src="../js/angular.min.js" ></script>
<script type="text/javascript" src="../js/jquery-3.3.1.min.js" ></script>
<style>
* {
margin: 0;
padding: 0;
}
table {
border-collapse: collapse;
}
td, th {
padding: 3px;
height: 50px;
width: 100px;
border: 1px solid gainsboro;
text-align: left;
}
.nav {
width: 800px;
text-align: right;
}
tbody tr td:nth-child(4) {
width: 200px;
}
tbody tr td:nth-child(4) button {
width: 30px;
height: 30px;
}
tbody tr td:nth-child(4) input {
width: 30px;
height: 30px;
border: 1px solid gainsboro;
border-radius: 5px;
}
.nav button {
width: 150px;
height: 40px;
background: red;
color: white;
border: 0;
border-radius: 5px;
}
button {
width: 50px;
height: 30px;
background: blue;
border: 0;
border-radius: 5px;
color: white;
}
a {
text-decoration: none;
}
</style>
<script>
var myapp = angular.module("myapp", []);
myapp.controller("myCtrl", function ($scope) {
//自拟商品信息
$scope.data = [{"name": "qq", "price": 12.9, "number": 1, done: false},
{"name": "wx", "price": 23.9, "number": 1, done: false},
{"name": "wx", "price": 99.9, "number": 1, done: false},
{"name": "wb", "price": 63.9, "number": 1, done: false}];
//点击加号的方法
$scope.add = function (index) {
$scope.data[index].number++;
$scope.sum();
}
//点击减号的方法
$scope.jian = function (index) {
//点击-操作时,当商品数量为1时，弹出对话框，询问是否移除
if ($scope.data[index].number == 1) {
if (confirm("您是否将该商品移除购物车？")) {
$scope.data[index].number--;
$scope.data.splice(index,1);
$scope.sum();
}
} else if ($scope.data[index].number > 1) {
$scope.data[index].number--;
$scope.sum();
}
}
//计算商品总价的方法
$scope.sum = function () {
$scope.allMoney = 0;
for (var i = 0; i < $scope.data.length; i++) {
$scope.allMoney += $scope.data[i].price * $scope.data[i].number;
}
}
$scope.sum();
//点击输入框的方法
$scope.dianji = function () {
$scope.sum();
}
$scope.shopping = false;
//默认全选是不选的
$scope.check = false;
//删除全部商品的方法
$scope.delAll = function (check) {
$scope.checkD(check);
}
$scope.checkD = function (state) {
for (var i = 0; i < $scope.data.length; i++) {
$scope.data[i].done = state;
}
}
//下面的选框代表
$scope.checkSS = false;
$scope.checkS = function () {
$scope.flag = 0;
for (var i = 0; i < $scope.data.length; i++) {
if ($scope.data[i].done == true) {
$scope.flag++;
$scope.checkSS = true;
}
}
//实现当下面全部选中，全选框选中的效果
if ($scope.flag == $scope.data.length) {
$scope.check = true;
} else {
$scope.check = false;
}
}
//判断全选框下面的多选框有几个的方法
//清空购物车的方法
$scope.clearShpooing = function () {
if ($scope.check == true || $scope.checkSS == true) {
for (var i = 0; i < $scope.data.length; i++) {
if ($scope.data[i].done == true) {
$scope.data.splice(i--, 1);
if ($scope.data.length == 0) {
$scope.show = false;
$scope.shopping = true;
}
$scope.sum();
}
}
if ($scope.check == true) {
$scope.data.length = 0;
$scope.show = false;
$scope.shopping = true;
}
} else {
alert("请先选择要操作的商品");
}
}
$scope.show = true;
$scope.remove = function (index) {
$scope.data.splice(index, 1);
if ($scope.data.length == 0) {
$scope.show = false;
$scope.shopping = true;
}
}
//点击去逛商城的代码
$scope.showS=function () {
$scope.show = true;
$scope.check=false;
}
});
</script>
</head>
<body ng-app="myapp" ng-controller="myCtrl">
<h1>我的购物车</h1>
<p ng-show="shopping">您的购物车为空<a href="#" ng-click="showS()">去逛商城</a></p>
<p class="nav">
<button ng-click="clearShpooing()" ng-show="show">清空购物车</button>
</p>
<!--创建购物车列表-->
<table ng-show="show">
<thead>
<th><input type="checkbox" ng-model="check" ng-click="delAll(check)"></th>
<th>name</th>
<th>price</th>
<th>number</th>
<th>totalprice</th>
<th>option</th>
</thead>
<tbody>
<!--ng-repeat渲染数据到界面-->
<tr ng-repeat="item in data">
<td><input type="checkbox" ng-model="item.done" ng-click="checkS()"></td>
<td>{{item.name}}</td>
<td>{{item.price | currency:"￥"}}</td>
<td>
<button ng-click="jian($index)">-</button>
<input type="text" ng-model="item.number" ng-checked="dianji()">
<button ng-click="add($index)">+</button>
</td>
<td>{{item.price*item.number |currency:"￥"}}</td>
<td>
<button ng-click="remove($index)">删除</button>
</td>
</tbody>
<tfoot>
<tr>
<!--价钱起前面加"￥"-->
<td colspan="6">总价为:{{allMoney | currency:"￥"}}</td>
</tr>
</tfoot>
</table>
</body>
</html>
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