如何在通过单击jquery中的外部按钮向上或向下移动表行时修复特定列值

<table id="myTable">
  <thead>
    <tr>
      <th>列1</th>
      <th>列2</th>
      <th>列3</th>
      <th>操作</th>
    </tr>
  </thead>
  <tbody>
    <tr>
      <td>值1</td>
      <td>值2</td>
      <td>值3</td>
      <td><button class="move-up">向上</button> <button class="move-down">向下</button></td>
    </tr>
    <tr>
      <td>值4</td>
      <td>值5</td>
      <td>值6</td>
      <td><button class="move-up">向上</button> <button class="move-down">向下</button></td>
    </tr>
    <!-- 更多行... -->
  </tbody>
</table>

$(document).ready(function() {
  // 向上移动行
  $(document).on('click', '.move-up', function() {
    var row = $(this).closest('tr');
    if (row.index() > 0) {
      row.insertBefore(row.prev());
    }
  });

  // 向下移动行
  $(document).on('click', '.move-down', function() {
    var row = $(this).closest('tr');
    if (row.index() < $('#myTable tbody tr').length - 1) {
      row.insertAfter(row.next());
    }
  });
});