// 易错点4：仅处理栈非空的情况，忽略栈空的情况 → 栈空时res[i]会是undefined
Initially Squire was ecstatic, expecting they could access a digitised customer list. But Harp broke the news that the sales records were just a "pile of notes" that went back decades.
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此外，部分消费者转向购买二手旗舰或对旧机进行扩容。这一趋势带动非官方维修和二手市场的繁荣。在DIY市场，主板销量相比去年同期下降了40%-50%，部分整机零售商甚至推出无内存的整机产品以应对成本压力。
int8 与 int4 — 有什么区别？