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Dalam proses pembelajaran angularjs, saya membuat latihan troli beli-belah yang mudah dan menghadapi dua masalah berikut
1 Jumlah harga produk ($scope.TotalPrice) tidak berfungsi. Model terikat di atas dan tidak dipaparkan
2 Apabila memadam () satu produk, produk lain juga akan dipadamkan dengan sewajarnya
Pautan demo adalah seperti berikut
http://jsbin.com/qometulete/edit?html,js,output
Kod HTML adalah seperti berikut

<!doctype html>
    <html lang="en" ng-app="shopCart">
    <head>
        <meta charset="UTF-8">
        <meta name="viewport" content="width=device-width,initial-scale=1">
        <title>shop cart</title>
        <link rel="stylesheet" >
        <script src="http://apps.bdimg.com/libs/jquery/2.1.4/jquery.min.js"></script>
        <script src="http://apps.bdimg.com/libs/bootstrap/3.3.4/js/bootstrap.min.js"></script>
        <script src="http://apps.bdimg.com/libs/angular.js/1.4.6/angular.min.js"></script>
        <script src="http://apps.bdimg.com/libs/lodash/3.5.0/lodash.js"></script>
        <script src="src/scripts/shopcart.controller.js"></script>
    </head>
    <body ng-controller="shopCartCtrl">
        <p class="container">
            <p class="row">
        <table class="table table-hover">
            <thead>
                <tr>
                    <th class="col-md-2">#</th>
                    <th class="col-md-2">商品</th>
                    <th class="col-md-2">單價(jià)</th>
                    <th class="col-md-2">數(shù)量</th>
                    <th class="col-md-2">增加</th>
                    <th class="col-md-2">減少</th>
                    <th class="col-md-2">小計(jì)</th>

                </tr>
            </thead>
            <tbody>
                <tr  ng-repeat="data in datas">
                    <th scope="row">{{data.id}}</th>
                    <td>{{data.name}}</td>
                    <td>{{data.price}}</td>
                    <td>{{data.count}}</td>
                    <td ng-click="addNum($index)">{{data.add}}</td>
                    <td ng-click="reduceNum($index)">{{data.reduce}}</td>
                    <td>{{data.count*data.price | currency}}</td>
             <th class="col-md-2" ng-click="delProduct($index,$event)">刪除</th>
                </tr>
            </tbody>
            <tfoot>
                <tr>
                    <td>{{TotalNum }}</td>
                    <td>{{TotalPrice | number:2}}</td>
                </tr>
            </tfoot>
        </table>
        </p>
        </p>
    </body>
    </html>

Kod JS adalah seperti berikut

var myApp = angular.module('shopCart',[]);
myApp.controller('shopCartCtrl',['$scope', function($scope) {
  //購物車信息
  $scope.datas = [
    {id:'1',name:'蜂蜜',price: 50,count: 1,add: '+', reduce: '-'},
    {id:'2',name:'黃豆醬',price: 77.5,count: 1,add: '+', reduce: '-'},
    {id:'3',name:'牛奶',price: 60,count: 1,add: '+', reduce: '-'}
  ];
  var len = $scope.datas.length;
  //點(diǎn)擊'+'增加數(shù)量
  $scope.addNum = function($index) {
    for(i=0;i<len;i++) {
      if(i==$index) {
        $scope.datas[i].count++;
            getTotal();
      }
    }
  };
  //點(diǎn)擊"-"減少數(shù)量
  $scope.reduceNum = function($index) {
    for(i=0;i<len;i++) {
      if(i==$index && $scope.datas[i].count!=0) {
        $scope.datas[i].count--;
            getTotal();
      }
    }
  };
  //刪除商品
  $scope.delProduct = function(index,event) {
    _.remove($scope.datas,function(valule,key) {
      return key == index;
      //console.log(index);
      event.preventDefault();
    });

  }
  //商品總數(shù)量
 var getNum = function() {
   $scope.TotalNum = 0;
   for(i=0;i<len;i++) {
     $scope.TotalNum = $scope.TotalNum + $scope.datas[i].count;
   }
   return $scope.TotalNum;
 }
  //商品的總價(jià)
  var getTotal = function() {
    $scope.TotalPrice = 0;
    for(i=0;i<len;i++) {
      $scope.TotalPrice = $scope.TotalPrice + $scope.datas[i].pirce * $scope.datas[i].count;
    }
    return $scope.TotalPrice;
  }
}]);