AngularJS未更新动态表中的总计

当我将一个项目添加到我的表中时，我试图合计所有价格和数量。我无法刷新总数。有人能看到我代码中的错误吗

$scope.updateTotals = [];
function ExampleCtrl ($scope){
    $scope.people = [
        {number: '1', title: 'Tom Sawyer', author: 'Mark Twain', price: '28', quantity: '2', action: 'xx'},
        {number: '2', title: 'Alice\'s Adventure in Wonderland', author: 'Lewis Carroll', price: '17.00', quantity: '2', action: 'xx'},
        {number: '3', title: 'The Old Man and the Sea', author: 'Ernest Hemingway', price: '17', quantity: '1', action: 'xx'}

    ];


$scope.addPerson = function (){
    var person = {
        number: $scope.number,
        title: $scope.title,
        author: $scope.author,
        price: $scope.price,
        quantity: $scope.quantity,
        action: $scope.action

    };

    $scope.people.push( person );
};

$scope.removePerson = function (index){
    $scope.people.splice( index, 1 );


};

$scope.totPrice = function (){
    var totPrice = 0;
    var values = [$scope.people]
    angular.forEach(values, function(price, quantity) {
        totPrice += (price * quantity)
    });
    return totPrice;
};
$scope.totQty = function (){
    var totQty = 0;
    angular.forEach(
        $scope.people.quantity, function (quantity){
            totQty += (
                $scope.people.quantity * $scope.people.title
                );
            return totQty; }
    );



};


}

---

如果我理解正确，totPrice计算总价格，并且addPerson作为ng click事件从HTML脚本中调用

您是否已尝试执行：

$scope.$apply();

说你有零钱

如何在HTML中显示“总价”

更好的方差是：

  $scope.totPrice = function (){
    var totPrice = 0;
    var values = [$scope.people]
    angular.forEach(values, function(price, quantity) {
        totPrice += (price * quantity)
    });
    $scope.totalPrice = totPrice;
};

<span ng-bind="totalPrice">

$scope.totPrice=函数（）{
var-totPrice=0；
var值=[$scope.people]
角度.forEach（值、函数（价格、数量）{
总价+=（价格*数量）
});
$scope.totalPrice=总价；
};

---

而是将总价存储在变量中并进行绑定。

您可以使用它监视所有数量，并在其中一个数量发生变化时更新总价。（顺便提一下，使用名为

people

和

person

的变量来指代产品是相当令人困惑的。）为什么在迭代

$scope.people.quantity*$scope.people.title

时要执行

$scope.people.quantity

？你想对数组或对象进行数学运算？

  $scope.totPrice = function (){
    var totPrice = 0;
    var values = [$scope.people]
    angular.forEach(values, function(price, quantity) {
        totPrice += (price * quantity)
    });
    $scope.totalPrice = totPrice;
};

<span ng-bind="totalPrice">