private Font updateFont() {
        String fontStr = (String) jlFont.getSelectedValue();
        String styleStr = (String) jlFontStyle.getSelectedValue();
        int style;
        int size = sizeValue[jlFontSize.getSelectedIndex()];
        if (styleStr.equals("常规")) {
            style = Font.PLAIN;
        } else if (styleStr.equals("斜体")) {
            style = Font.ITALIC;
        } else if (styleStr.equals("粗体")) {
            style = Font.BOLD;
        } else {
            style = Font.ITALIC | Font.BOLD;
        }
        Font f = new Font(fontStr, style, size);
        // 删除线与下划线
        String temp = (String) jlFont.getSelectedValue();
        if (jcDelLine.isSelected()) {
            if (jcDownLine.isSelected()) {
                showJLabel.setText("<html><s><u>" + temp + "</u></s><html>");
            } else if (!jcDownLine.isSelected()) {
                showJLabel.setText("<html><s>" + temp + "</s><html>");
            }
        } else if (!jcDelLine.isSelected()) {
            if (jcDownLine.isSelected()) {
                showJLabel.setText("<html><u>" + temp + "</u><html>");
            } else if (!jcDownLine.isSelected()) {
                showJLabel.setText(temp);
            }
        }
        // 颜色
        int select = jComboBox.getSelectedIndex();
        showJLabel.setForeground(colorValue[select]);
        return f;
    }