#author=lx#date=2011-12-27import osimport sysclass node:        "store the information of a node in bnt"        def __init__( self, nodename=None, cptnum=2, pnum=0, cnum=0, parename=None, childname=None ):                self.node_name = nodename                self.cpt_num = cptnum                self.p_num = pnum                self.c_num = cnum                self.pare_name = parename                self.child_name = childname        def get_name( self ):                return self.node_name        def get_cptNum( self ):                return self.cpt_num        def get_parentNum( self ):                return self.p_num        def get_childNum( self ):                return self.c_num        def get_parentName( self ):                if self.p_num >= 1:                        return self.pare_name                else:                        return None        def get_childName( self ):                if self.c_num >= 1:                        return self.child_name                else:                        return None        def the_new_node( self ):                print 'the new node is %s' % self.node_nameif __name__ == "__main__":        parent = [ 'god', 'godgod' ]        child = ['my', 'mymy']        node1 = node( 'lx', 2, 2, 2, parent, child )        node1.the_new_node()        print node1.get_name()        print node1.get_cptNum()        print node1.get_parentNum()        print node1.get_parentName()        print node1.get_childName()