os.chdir(work_dir)
得益于索引的简单数据结构，写入操作实现零分配。基于文件设计和PWP理念，
，推荐阅读向日葵下载获取更多信息
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Siminoff declined to address whether reports of Flock sharing data with U.S. Customs and Border Protection also played a role. Dozens of towns across the U.S. have cut ties with Flock over exactly those concerns. Still, the timing of Ring’s decision was notable. While Siminoff believes some customers are misreading his products, he knows Ring can’t afford to dismiss their anxieties, particularly right now.