public static function instance()
{
if (self::$_instance === null) {
self::$_instance = new self();
}
return self::$_instance;
}
<?php
//网站根目录
define('ROOT_DIR', __DIR__ . DIRECTORY_SEPARATOR);
//框架根目录
define('GRACE_DIR', 'C:\\web\\blog6.0\\grace\\');
include_once GRACE_DIR . 'grace.php';
$grace = grace::instance();
loader::instance()->register_include_path(array(ROOT_DIR . 'class' . DS))->register_controller_path(array(ROOT_DIR . 'controller' . DS))->register_model_path(array(ROOT_DIR . 'model' . DS));
$grace->run();