javascript - AngularJS - 无法总结范围上的属性

Question

我在 Angular Controller 中有以下 Angular 代码:

代码:

$scope.orangeCrate.italian = {
    "description": "Annual",
    "payer": "farmer",
    "farmerCost": 0,
    "ownerCost": 21
};

$scope.orangeCrate.portugal = {
    "description": "Annual",
    "payer": "owner",
    "farmerCost": 6.5,
    "ownerCost": 0
};

$scope.orangeCrate.total = {
    "farmerCost": $scope.orangeCrate.italian.farmerCost + $scope.orangeCrate.portugal.farmerCost,
    "ownerCost": $scope.orangeCrate.italian.ownerCost + $scope.orangeCrate.portugal.ownerCost,
};

当我尝试将 $scope.orangeCrate.total.farmerCost 中的值打印到我的 View 上时，我什么也没得到，即使我应该得到 6.5!

我做错了什么？

Answer 1

这样的事情就可以了(抱歉“糟糕”的答案......我很着急):

$scope.orangeCrate = {
    "italian": {
        "description": "Annual",
            "payer": "farmer",
            "farmerCost": 0,
            "ownerCost": 21
    },
        "portugal": {
        "description": "Annual",
            "payer": "owner",
            "farmerCost": 6.5,
            "ownerCost": 0
    }
};
$scope.orangeCrate.total = {
    "farmerCost": $scope.orangeCrate.italian.farmerCost + $scope.orangeCrate.portugal.farmerCost,
        "ownerCost": $scope.orangeCrate.italian.ownerCost + $scope.orangeCrate.portugal.ownerCost,
};