递归调用的一个例子

public void delete(Connection conn,int id){
  DB db=new DB();
  Statement stmt=db.createStamt(conn);
  String sql="select * from article where pid="+id;
  ResultSet rs=db.executeQuery(stmt,sql);
  try{
   while(rs.next()){
    
     delete(conn,rs.getInt("id"));
    
   }

   String sqldel="delete * from article where id="+id;
   Statement stmtdel=db.createStamt(conn);
   stmtdel.executeUpdate(sqldel);
   
  }catch(SQLException e){
   e.printStackTrace();
  }finally{
   
   
  }
  
  
  
 
}