當我選擇已婚總數(shù)僅顯示為已婚，并且當我選擇未婚總數(shù)僅顯示為未婚，并且如果以上總數(shù)均未顯示時，我試圖計算列數(shù)。function filterText() {  var rex = new RegExp($('#filterText').val().join('|'));  if (rex == "/all/") {    clearFilter()  } else {    $('.content').hide();    $('.content').filter(function() {      return rex.test($(this).text());    }).show();  }}function clearFilter() {  $('.filterText').val('');  $('.content').show();}<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script><select id='filterText' multiple="multiple" name="filterText[]" style='display:inline-block' onclick='filterText()'>  <option disabled selected>Select</option>  <option value='1'>Married</option>  <option value='2'>Unmarried</option>  <option value='all'>All</option></select><table id="table_format" border="1px">  <thead>    <tr>      <th>#</th>      <th>First Name</th>      <th>Number</th>      <th>Married      </th>    </tr>  </thead>  <tbody>    <tr class="content">      <td>1</td>      <td>Mark</td>      <td>25</td>      <td>Married</td>    </tr>    <tr class="content">      <td>1</td>      <td>Larry</td>      <td>20</td>      <td>Unmarried</td>    </tr>    <tr class="content">      <td>1</td>      <td>Mark</td>      <td>15</td>      <td>Married</td>    </tr>    <tr class="content">      <td>2</td>      <td>Jacob</td>      <td>30</td>      <td>Unmarried</td>    </tr>    <tr class="content">      <td>2</td>      <td>Larry</td>      <td>5</td>      <td>Unmarried</td>    </tr>    <tr>      <td>3</td>      <td>Total</td>      <td>800</td>      <td>All</td>    </tr>  </tbody></table>我只想計算特定的選定值。如果有任何解決方案，請幫助我，并提前謝謝。