$scope.entity = {specificationOptionList:[]};
        //增加规格选项行
        $scope.addTableRow = function() {
                $scope.entity.specificationOptionList.push({});
}
执行代码报错（AngularJS对象中定义数组定义数组的格式好像有问题）：
TypeError: Cannot read property 'push' of undefined
    at h.$scope.addTableRow (VM99 specificationController.js:87)

$scope.entity = {specificationOptionList:[]};
        //增加规格选项行
        $scope.addTableRow = function() {
                $scope.entity.specificationOptionList.push({});
}
执行代码报错（AngularJS对象中定义数组定义数组的格式好像有问题）：
TypeError: Cannot read property 'push' of undefined
    at h.$scope.addTableRow (VM99 specificationController.js:87)