protected function getConfig($config = null) { //如果传入配置文件 $host = isset($config['host']) ? $config['host'] : ''; $port = isset($config['port']) ? $config['port'] : ''; if ($host && $port) { $new_config['host'] = $host; $new_config['port'] = $port; self::$_config = $new_config; } else { self::$_config = (include MEMCACHE_PATH . 'config/config.php'); } }