if(!(h=cursor[classno])) {
if (len === 0) return []; // 补充空数组边界，避免后续逻辑出错
。关于这个话题，heLLoword翻译官方下载提供了深入分析
Филолог заявил о массовой отмене обращения на «вы» с большой буквы09:36
The crossbench peer, who was an award-winning film director before joining the House of Lords, has become a leading voice in Parliament on online safety.