我正在处理我的代码,因为我有表格中的复选框列表。我在每行添加类时遇到问题,因为当我选择所有复选框并单击按钮时,它只会在一行中添加一个类。这是复选框:<tr class="read" data-id="236'" data-url="TTNsN1UxWXh5LzYwUjZaSlR1Qk4xZz09" data-sort="1556928960"> <td class="inbox-small-cells"> <div id="mail_checkbox" name="mail_checkbox"> <input type="checkbox" id="mail_checkbox1" name="mail_checkbox1" class="mail-check" unchecked=""> </div> </td> <td class="inbox-small-cells"><i class="fa fa-star"></i></td> <td class="view-message dont-show"> <div id="mail_check">Rob <myname@example.com></rob@example.com></div> </td> <td class="view-message"> <div id="mail_check">Hey!</div> </td> <td class="view-message inbox-small-cells"> <div id="mail_check"></div> </td> <td class="view-message text-right"> <div id="mail_check">04 May</div> </td> </tr><tr class="read" data-id="235'" data-url="U21hT0hpemZRUWlwUmN3amVjMUJzQT09" data-sort="1556479689"> <td class="inbox-small-cells"> <div id="mail_checkbox" name="mail_checkbox"> <input type="checkbox" id="mail_checkbox1" name="mail_checkbox1" class="mail-check" unchecked=""> </div> </td> <td class="inbox-small-cells"><i class="fa fa-star"></i></td> <td class="view-message dont-show"> <div id="mail_check">Shibbir <name2@example.com></creativeartbd@gmail.com></div> </td> <td class="view-message"> <div id="mail_check">Image in body and attachement</div> </td> <td class="view-message inbox-small-cells"> <div id="mail_check"><i class="fa fa-paperclip"></i></div>我想要实现的是,当我选择所有复选框并单击一个按钮时,我想删除“已读”类并在勾选的复选框所在的每一行中添加“未读”类。你能告诉我一个例子,我如何为表格中勾选复选框的每一行添加类?
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