AnngularJs购物车的简单操作

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<!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title></title> <script src="http://apps.bdimg.com/libs/angular.js/1.4.6/angular.min.js"></script> <script> var app = angular.module("myApp",[]); app.controller("myCtrl",function($scope){ $scope.shops = [{ name:"qq1", price:12.9, num:3, state:false },{ name:"wx1", price:22, num:5, state:false },{ name:"qq2", price:33, num:6, state:false },{ name:"wx2", price:44, num:4, state:false }]; //增加 $scope.add = function(index){ $scope.shops[index].num += 1; } //减少 $scope.reduce = function(index){ if($scope.shops[index].num>1){ $scope.shops[index].num -= 1; }else{ if(window.confirm("要删除"+$scope.shops[index].name+"吗？")){ $scope.shops.splice(index,1); }else{ } } } //获取总价 $scope.allPrice = function(){ var all = 0; for(index in $scope.shops){ all += $scope.shops[index].price * $scope.shops[index].num; } return all; } //全选 $scope.selectAll = false; $scope.selectAllFun = function(){ if($scope.selectAll){ for(index in $scope.shops){ $scope.shops[index].state = true; } }else{ for(index in $scope.shops){ $scope.shops[index].state = false; } } } //反选 $scope.checkSelectAll = function(){ var flag = false; for(index in $scope.shops){ if($scope.shops[index].state){ }else{ flag = true; } } //至少有一个没有被选中 if(flag){ $scope.selectAll = false; }else{ $scope.selectAll = true; } } //批量删除 $scope.deleteSelected = function(){ var selectedShop = []; for(index in $scope.shops){ if($scope.shops[index].state){ selectedShop.push($scope.shops[index].name); } } if(selectedShop.length>0){ for(i1 in selectedShop){ for(i2 in $scope.shops){ if(selectedShop[i1] == $scope.shops[i2].name){ $scope.shops.splice(i2,1); } } } }else{ alert("请先选择") } } //判断数据源的长度 $scope.getSize = function(){ if($scope.shops.length > 0 ){ return false; }else{ return true; } } }); </script> </head> <body ng-app="myApp" ng-controller="myCtrl"> <center> <h3>我的购物车</h3> <button ng-click="deleteSelected()">批量删除</button><br /><br /> <table ng-hide="getSize()" border="1 solid blue" cellpadding="10" cellspacing="0"> <thead> <tr> <th><inputtype="checkbox"ng-model="selectAll"ng-click="selectAllFun()"/></th> <th>name</th> <th>price</th> <th>number</th> <th>totalPrice</th> <th>option</th> </tr> </thead> <tbody> <tr ng-repeat="shop in shops"> <td><inputtype="checkbox"ng-model="shop.state"ng-click="checkSelectAll()"/></td> <td>{{shop.name}}</td> <td>{{shop.price | currency:"￥"}}</td> <td> <button ng-click="reduce($index)">-</button> <input type="number" ng-model="shop.num" style="width: 30px;"/> <button ng-click="add($index)">+</button> </td> <td>{{shop.price * shop.num | currency:"￥"}}</td> <td><button>删除</button></td> </tr> <tr> <td colspan="6">总价为：<spanng-bind="allPrice() | currency:'￥'"></span></td> </tr> </tbody> </table> <span ng-show="getSize()">您的购物车为空，请先逛<ahref="#">购物车</a></span> </center> </body> </html>

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