Angularjs --更新后刷新视图中的单个列

<div ng-controller="MyController">
  <table>
    <tr>
      <th>姓名</th>
      <th>年龄</th>
    </tr>
    <tr ng-repeat="person in people">
      <td>{{ person.name }}</td>
      <td>{{ person.age }}</td>
    </tr>
  </table>
</div>

angular.module('myApp', [])
  .controller('MyController', function($scope) {
    $scope.people = [
      { name: '张三', age: 20 },
      { name: '李四', age: 25 },
      { name: '王五', age: 30 }
    ];
    
    // 更新单个列的数据
    $scope.updateAge = function(index, newAge) {
      $scope.people[index].age = newAge;
    };
  });