public void mouseClicked(MouseEvent e){
                int selectedRow = table.getSelectedRow(); //ѡ
                Object o1 = tableModel.getValueAt(selectedRow, 0);      //ѡеĵ0Ԫ
                Object o2 = tableModel.getValueAt(selectedRow, 1);
                Object o3 = tableModel.getValueAt(selectedRow, 2);
                Object o4 = tableModel.getValueAt(selectedRow, 3);
                IDLabel.setText(o1.toString());  //ıֵ
                nameText.setText(o2.toString());
                pwdText.setText(o3.toString());
                commentsText.setText(o4.toString());
            }