定义

JMenuBar jMenuBar;
JMenu file,edit,help;
JMenuItem save;
JPanel jPanel;
JScrollPane jScrollPane,main;

DefaultMutableTreeNode root,column;
DefaultMutableTreeNode table;
JTree tree;
//jTreeList 存放的数据 JTree 的名字 位置
Vector tables,jTreeList;

Config rc =null;;
JdbcVO jdbcVO;
SqlConnection sqlConnection = null;

JLabel main_table,choose;

JButton submit,cancel,build;

JComboBox select;

JTextArea textArea ;

ArrayList jTree_select = null ;



static int X=20;
static int y=40;