Angular实现购物车计算示例代码

  public class ShoppingCar  {    public string Title { get; set; }    public decimal UnitPrice { get; set; }    public int Count { get; set; }  }

public ActionResult GetCar()    {      List<ShoppingCar> cars = new List<ShoppingCar>      {        new ShoppingCar { Title="苹果",Count=1,UnitPrice=2.5m},        new ShoppingCar { Title="香蕉",Count=3,UnitPrice=1.5m},        new ShoppingCar { Title="苦瓜",Count=1,UnitPrice=3.5m},        new ShoppingCar { Title="黄瓜",Count=3,UnitPrice=2.2m}      };      return Json(cars,JsonRequestBehavior.AllowGet);    }    public ActionResult AddCar(List<ShoppingCar> car)    {      return Json("ok", JsonRequestBehavior.AllowGet);    }

  <div ng-app="DemoApp" ng-controller='CartController'>    <table class="table table-striped">      <thead>        <tr>          <td>标题</td>          <td>单价</td>          <td>数量</td>          <td>小计</td>          <td>删除</td>        </tr>      </thead>      <tbody>        <tr ng-repeat="item in ShoppingCar">          <td>{{item.Title}}</td>          <td>{{item.UnitPrice}}</td>          <td>            <input type="text" ng-cloak ng-model="item.Count" style="width:50px;text-align:center;">            <button my-adds ng-click="UpdateCar(item.Title,1)" ng-class="{cursors:true}">+</button>            <button my-minus ng-click="UpdateCar(item.Title,-1)" ng-class="{cursors:true}">-</button>          </td>          <td>{{item.Count*item.UnitPrice | number:2}}</td>          <td><button my-minus ng-click="UpdateCar(item.Title,-100)" ng-class="{cursors:true}">删</button></td>        </tr>      </tbody>    </table>    <p ng-init=0>总价格：{{ total | number:2}}</p>    <button type="button" ng-click="submit()">提交</button>  </div>

 var app = angular.module('DemoApp', []);  app.controller('CartController', ['$scope', '$http', function ($scope, $http) {    $scope.ShoppingCar = {}    var GetCar = function () {      $http.get('/Employee/GetCar')      .success(function (response) {        $scope.ShoppingCar = response;        GetTotal();      });    }    $scope.total = 0;    var GetTotal = function () {      for (var i = 0; i < $scope.ShoppingCar.length; i++) {        var item = $scope.ShoppingCar[i];        $scope.total += item.Count * item.UnitPrice;      }    }    $scope.UpdateCar = function (title, count) {      for (var i = 0; i < $scope.ShoppingCar.length; i++) {        var item = $scope.ShoppingCar[i];        if (item.Title == title) {          item.Count = item.Count + count;//这里可以增加上下限制          if (item.Count < 0) {            $scope.ShoppingCar.splice(i, 1);          }        }      }      GetTotal();    }    $scope.submit = function () {      $http.post('/Employee/AddCar', $scope.ShoppingCar)          .success(function (response) {          alert(response);      });    }    GetCar();  }]);