// 测试例
require_once xzn/html/tree.php;
$t = new tree;
$t->set(0,a1,url);
$t->set(0.0.0,aaa,url);
$t->set(0.0.0.0,bbb,url);
$t->set(0.0.0.2,ccc,);
$t->set(0.0.0.1,ddd,url);
$t->set(0.0,eee,url);
$t->set(1,ff,url);
//print_r($t);
?>
$t->display();
?>