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;