登陆注册界面设计，注册失败自动返回，成功则跳转页面-public class Register extends JFrame implements ActionListener{ private static final long serialVersionUID = 1L String Sex = "" JLabel lb_title,lb_user,lb_psd,lb_repsd,lb_sex,lb_class,lb_age JT

private JFrame f private JPanel p1 private JButton btn1 private JLabel l1, l2, l3, l4 private JTextField t1, t3 private JComboBox c1