定存什么：要下标/距离就栈里存索引，只要值就存值或存索引再 nums[i] 取。
"In other countries they might spend a lot of time at work, but that doesn't mean they work a lot. Changing the culture and the mindset is the biggest challenge."。关于这个话题，heLLoword翻译官方下载提供了深入分析
，详情可参考51吃瓜
Unconsumed bodies: Pull semantics mean nothing happens until you iterate. No hidden resource retention — if you don't consume a stream, there's no background machinery holding connections open.。关于这个话题，谷歌浏览器【最新下载地址】提供了深入分析
pip install safetensors torch