如何在angularjs中从多选框中获取选中的选项值？

<div ng-app="myApp" ng-controller="myCtrl">
  <label>
    <input type="checkbox" ng-model="selectedOptions.option1" ng-checked="selectedOptions.option1"> Option 1
  </label>
  <label>
    <input type="checkbox" ng-model="selectedOptions.option2" ng-checked="selectedOptions.option2"> Option 2
  </label>
  <label>
    <input type="checkbox" ng-model="selectedOptions.option3" ng-checked="selectedOptions.option3"> Option 3
  </label>
  
  <button ng-click="getSelectedOptions()">Get Selected Options</button>
</div>

angular.module('myApp', [])
.controller('myCtrl', function($scope) {
  $scope.selectedOptions = {}; // 初始化选项值对象

  $scope.getSelectedOptions = function() {
    var selectedOptions = [];
    
    // 遍历选项值对象，将选中的选项值添加到selectedOptions数组中
    angular.forEach($scope.selectedOptions, function(value, key) {
      if (value) {
        selectedOptions.push(key);
      }
    });
    
    console.log(selectedOptions); // 输出选中的选项值
  };
});