LLBAR_ALWAYS);
JPanel login_change_labelpanel = new JPanel();//装标签的面板
JPanel login_change_textpanel = new JPanel();
JPanel login_change_butpanel = new JPanel();
JButton login_change_add = new JButton("Add");
JButton login_change_delete = new JButton("Delete");
JButton login_change_edit = new JButton("Edit");
//********************添加数据窗口的组件**********************************
JFrame login_change_add_frame = new JFrame("Add_Frame");
JButton login_change_add_OK = new JButton("OK");
JTextArea login_change_add_text = new JTextArea(8,20);
JScrollPane login_change_add_jsp=new JScrollPane(login_change_add_text,JScrollPane.VERTICAL_SCROLLBAR_ALWAYS,JScrollPane.HORIZONTAL_SCROLLBAR_ALWAYS);
JLabel login_change_add_label = new JLabel("Please add data!");
JLabel login_change_add_Num = new JLabel("NO.");
JLabel login_change_add_Eqname = new JLabel("Name");
JLabel login_change_add_Voltage = new JLabel("U/V");
JLabel login_change_add_Current = new JLabel("I/A");
JLabel login_change_add_Bugname = new JLabel("BugName");
JLabel login_change_add_Bugtime = new JLabel("Time");
JTextField login_change_add_num = new JTextField(11);
JTextField login_change_add_eqname=new JTextField(11);
JTextField login_change_add_voltage=new JTextField(11);
JTextField login_change_add_current=new JTextField(11);
JTextField login_change_add_bugname=new JTextField(11);
JTextField login_change_add_bugtime=new JTextField(11);
JPanel login_change_add_panel1 = new JPanel();
JPanel login_change_add_panel2 = new JPanel();
JPanel login_change_add_panel3 = new JPanel();
JPanel login_change_add_panel4 = new JPanel();
JPanel login_change_add_panel5 = new JPanel();
JPanel login_change_add_panel6 = new JPanel();
JPanel login_change_add_panel7 = new JPanel();
JPanel login_change_add_panel8 = new JPanel();
JPanel login_change_add_panel9 = new JPanel();
String log_change_add_newnum;
String log_change_add_neweqname;
String log_change_add_newvoltage;
String log_change_add_newcurrent;
String log_change_add_newbugname;
String log_change_add_newbugtime;
//********************删除数据窗口的组件**********************************
JFrame login_change_delete_frame = new JFrame("Delete_Frame");
JButton login_change_delete_OK = new JButton("OK");
Choice login_change_delete_choice = new Choice();
JTextField login_change_delete_textfield = new JText
Field(11);
JTextArea login_change_delete_text = new JTextArea(6,18);
JScrollPane login_change_delete_jsp=new JScrollPane(login_change_delete_text,JScrollPane.VERTICAL_SCROLLBAR_ALWAYS,JScrollPane.HORIZONTAL_SCROLLBAR_ALWAYS);
JLabel login_change_delete_label = new JLabel("Please delete data!");
JPanel login_change_delete_panel1 = new JPanel();
JPanel login_change_delete_panel2 = new JPanel();
JPanel login_change_delete_panel3 = new JPanel();
JPanel login_change_delete_panel4 = new JPanel();
String login_change_delete_choicestring;
int login_change_delete_index=0;
//********************修改数据窗口的组件**********************************
JFrame login_change_edit_frame = new JFrame("Edit_Frame");
JButton login_change_edit_OK = new JButton("OK");
Choice login_change_edit_choice = new Ch