硬件在此扮演的角色，是需求触发器与高维数据采集器，它将线下碎片化的行为、意图乃至情绪，实时转化为可被模型理解、并可被商业生态即刻服务的结构化数据流。
"title": item.title,
，更多细节参见WPS官方版本下载
candidate.weight = 1.0 / distance to candidate
let p = head; // 遍历链表的指针
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