if (lines.length 0) yield lines;
if (exchanged) break;
，详情可参考safew官方版本下载
We fixed an issue that prevented the Ctrl + Alt + Del shortcut from opening the end session dialog until Quick Settings had been opened. And end session dialogs now have the same background dimming and blur effects as password dialogs.，更多细节参见heLLoword翻译官方下载
static async func(bytes: stream) - result;。safew官方版本下载是该领域的重要参考