我使用angularjs在html中动态创建了多个“单个”select标签。两列包含两个不同的选择标记。我想要第二个

<div ng-controller="MyController">
  <select ng-model="selectedOption" ng-change="updateOptions()">
    <option value="option1">Option 1</option>
    <option value="option2">Option 2</option>
  </select>
  
  <select ng-model="selectedSecondOption">
    <option ng-repeat="option in secondOptions" value="{{option.value}}">{{option.label}}</option>
  </select>
</div>

angular.module('myApp', [])
  .controller('MyController', function($scope) {
    $scope.selectedOption = 'option1';
    $scope.selectedSecondOption = '';
    
    $scope.updateOptions = function() {
      if ($scope.selectedOption === 'option1') {
        $scope.secondOptions = [
          { value: 'option1-1', label: 'Option 1-1' },
          { value: 'option1-2', label: 'Option 1-2' }
        ];
      } else if ($scope.selectedOption === 'option2') {
        $scope.secondOptions = [
          { value: 'option2-1', label: 'Option 2-1' },
          { value: 'option2-2', label: 'Option 2-2' }
        ];
      }
    };
  });