public function add_package_path($path, $view_cascade=TRUE)
{
$path = rtrim($path, '/').'/';
array_unshift($this->_ci_library_paths, $path);
array_unshift($this->_ci_model_paths, $path);
array_unshift($this->_ci_helper_paths, $path);
$this->_ci_view_paths = array($path.'views/' => $view_cascade) + $this->_ci_view_paths; // 添加配置文件
$config =& $this->_ci_get_component('config');
array_unshift($config->_config_paths, $path);
}

$this->load->add_package_path ( FCPATH . 'skins/' . base_skins . '/' );