private void GUI_addOrderModeButton(HKButtonPanel panel)
        {
            panel.Name = "OrderMode";
            int btnWidth   = 80;
            int blankWidth = (operationPanelWidth - btnWidth * 8) / 2;

            addButtonToHKButtonPanel(panel, btnWidth, orderAndRandomModeButtonClick, "开始", "重复语音");
            panel.addBlank(blankWidth);
            addButtonToHKButtonPanel(panel, btnWidth, orderAndRandomModeButtonClick, "出勤", "迟到", "事假", "病假", "旷课");
            panel.addBlank(blankWidth);
            addButtonToHKButtonPanel(panel, btnWidth, orderAndRandomModeButtonClick, "保存");
        }
        private void GUI_addFreeModeButton(HKButtonPanel panel)
        {
            panel.Name = "FreeMode";
            int btnWidth   = 90;
            int blankWidth = (operationPanelWidth - btnWidth * 7) / 2;

            addButtonToHKButtonPanel(panel, btnWidth, freeModeButtonClick, "播放语音");
            panel.addBlank(blankWidth);
            addButtonToHKButtonPanel(panel, btnWidth, freeModeButtonClick, "出勤", "迟到", "事假", "病假", "旷课");
            panel.addBlank(blankWidth);
            addButtonToHKButtonPanel(panel, btnWidth, freeModeButtonClick, "保存");
        }