Javascript：切换类的添加或删除

Question

我要做的是：当我单击“邮件”按钮时，第一个表将出现并隐藏第二个表，而当按“订户”按钮时，第二个表将不得不出现并隐藏第一个表。 但是我遇到的错误是，例如当我按下第二个按钮时，它不会隐藏第一个表

<script>
    function toggle_display(id){
        if(id=='mails'){
            document.getElementById('mails').classList.remove('hidden');
            document.getElementById('subscribers').classList.add('hidden');
        }
        if(id=='subscribers'){
            document.getElementById('mails').classList.add('hidden');
            document.getElementById('subscribers').classList.remove('hidden');
        }
}</script>

<a href="javascript:toggle_display('mails');"><input type="button" class="btn" value="Mails"/></a>
<a href="javascript:toggle_display('subscribers');"><input type="button" class="btn" value="Subscribers"/></a>

        <div class="row well well-lg hidden" id="mails">
               <table class="col-sm-12" border="1px solid black">
               <tr>
                    <th class="col-sm-2">Name</th>
                    <th class="col-sm-2">Email</th>
                    <th class="col-sm-2">Phone</th>
                    <th class="col-sm-2">Subject</th>
                    <th class="col-sm-3">Message</th>
               </tr>
               </table>
          </div>

          <div class="row well well-lg hidden" id="subscribers">
              <table class="col-sm-12" border="1px solid black">
                   <tr>
                      <th class="col-sm-2">ID</th>
                      <th class="col-sm-5">Email</th>
                      <th class="col-sm-3">Action</th>
                   </tr>
              </table>
          </div>

Answer 1

使用它，它正在工作...

 <script> function toggle_display(id){ if(id=='mails'){ document.getElementById('mails').style.display = 'block'; document.getElementById('subscribers').style.display = 'none'; } if(id=='subscribers'){ document.getElementById('mails').style.display = 'none'; document.getElementById('subscribers').style.display = 'block'; } }</script> <input type="button" class="btn" onclick="toggle_display('mails');" value="Mails"/> <input type="button" class="btn" value="Subscribers" onclick="toggle_display('subscribers');"/> <div class="row well well-lg hidden" id="mails"> <table class="col-sm-12" border="1px solid black"> <tr> <th class="col-sm-2">Name</th> <th class="col-sm-2">Email</th> <th class="col-sm-2">Phone</th> <th class="col-sm-2">Subject</th> <th class="col-sm-3">Message</th> </tr> </table> </div> <div class="row well well-lg hidden" id="subscribers"> <table class="col-sm-12" border="1px solid black"> <tr> <th class="col-sm-2">ID</th> <th class="col-sm-5">Email</th> <th class="col-sm-3">Action</th> </tr> </table> </div>