表頭塌陷的解決辦法是：失去焦點:

this->horizontalHeader()->setHighlightSections(false);

游標移動的解決辦法：重寫moveCursor事件

QModelIndex TableWidget::moveCursor(CursorAction cursorAction, Qt::KeyboardModifiers modifers)
{
     if(file_handler->edit_row >= 0)
    {
         return currentIndex();
    }
    else
   {
         return
 
 QTableWidget::moveCursor(cursorAction, modifers);
    }
}