private void initComponent() {
    close = new MyButton(30, 30, Img.CLOSE1_0, Img.CLOSE_1, Img.CLOSE_2);
    close.addMouseListener(
        new MouseListener() {
          public void mouseClicked(MouseEvent arg0) {
            System.exit(0);
          }

          public void mouseEntered(MouseEvent arg0) {}

          public void mouseExited(MouseEvent arg0) {}

          public void mousePressed(MouseEvent arg0) {}

          public void mouseReleased(MouseEvent arg0) {}
        });
    min = new MyButton(30, 30, Img.MINI1_0, Img.MINI_1, Img.MINI_2);
    min.addMouseListener(
        new MouseListener() {
          public void mouseClicked(MouseEvent arg0) {
            mf.setExtendedState(JFrame.ICONIFIED);
          }

          public void mouseEntered(MouseEvent arg0) {}

          public void mouseExited(MouseEvent arg0) {}

          public void mousePressed(MouseEvent arg0) {}

          public void mouseReleased(MouseEvent arg0) {}
        });
    search = new MyButton(90, 30, Img.SEARCH_0, Img.SEARCH_1, Img.SEARCH_2);
    search.addMouseListener(
        new MouseListener() {
          public void mouseClicked(MouseEvent arg0) {
            searchInf();
          }

          public void mouseEntered(MouseEvent arg0) {}

          public void mouseExited(MouseEvent arg0) {}

          public void mousePressed(MouseEvent arg0) {}

          public void mouseReleased(MouseEvent arg0) {}
        });
    _return = new MyButton(90, 30, Img.RETURNING_0, Img.RETURNING_1, Img.RETURNING_2);
    _return.addMouseListener(
        new MouseListener() {
          public void mouseClicked(MouseEvent arg0) {
            clear(); // 清空文本域和错误提示
            mf.setStated(mf.getState());
            mf.setState(0);
            mf.change();
          }

          public void mouseEntered(MouseEvent arg0) {}

          public void mouseExited(MouseEvent arg0) {}

          public void mousePressed(MouseEvent arg0) {}

          public void mouseReleased(MouseEvent arg0) {}
        });
    JLabel orderLabel = new JLabel("订单号:");
    orderLabel.setSize(160, 30);
    orderLabel.setFont(new Font("楷体", Font.BOLD, 29));
    orderField = new JTextField();
    orderField.setSize(220, 30);

    orderLabel.setLocation(MainFrame.w / 2 - 210, MainFrame.h * 3 / 4 - 45);
    orderField.setLocation(MainFrame.w / 2 - 90, MainFrame.h * 3 / 4 - 45);
    close.setLocation(MainFrame.w - 30, 0);
    min.setLocation(MainFrame.w - 80, 0);
    search.setLocation(MainFrame.w - 370, MainFrame.h * 3 / 4 + 30);
    _return.setLocation(MainFrame.w - 210, MainFrame.h * 3 / 4 + 30);

    add(orderLabel);
    add(orderField);
    add(close);
    add(min);
    add(search);
    add(_return);
  }