<div class="modal fade admin-import-course-member-modal" tabindex="-1" role="dialog" aria-hidden="true">
  <div class="modal-dialog modal-dialog-centered" role="document">
    <div class="modal-content">
      <div class="modal-header">
        <h5 class="modal-title">导入课堂成员</h5>
        <button type="button" class="close" data-dismiss="modal" aria-label="Close">
          <span aria-hidden="true">&times;</span>
        </button>
      </div>
      <div class="modal-body">
        <form class="admin-import-course-member-form" enctype="multipart/form-data">
          <div class="input-group">
            <div class="input-group-prepend">
              <span class="input-group-text">文件</span>
            </div>
            <div class="custom-file">
              <input type="file" name="file" id="import-course-member-input" class="upload-file-input" accept="application/vnd.openxmlformats-officedocument.spreadsheetml.sheet">
              <label class="custom-file-label file-names" for="import-course-member-input">选择文件</label>
            </div>
          </div>
          <div class="error text-danger"></div>
        </form>
      </div>
      <div class="modal-footer">
        <button type="button" class="btn btn-secondary" data-dismiss="modal">取消</button>
        <button type="button" class="btn btn-primary submit-btn">确认</button>
      </div>
    </div>
  </div>
</div>