实际就是显示一个Panel: /*日志信息按钮的处理函数*/
void btLog_actionPerformed(java.awt.event.ActionEvent event)
{
        if (JCommonToolKit.getApplet().logPanel == null)
            JCommonToolKit.getApplet().logPanel = new LogInfo();
        pOperation.removeAll();
        pOperation.validate();
        JCommonToolKit.getApplet().logPanel.setVisible(true);
        pOperation.add(JCommonToolKit.getApplet().logPanel);
        pOperation.validate();
        JCommonToolKit.getApplet().logPanel.repaint();
}