测试场景：给出一个 200 行的混乱 Python 爬虫脚本，要求重构为面向对象结构，并输出 Mermaid 类图。
But the capsule suffered several technical problems during its journey to the space station, and it was deemed too risky to take the astronauts home.
。关于这个话题，夫子提供了深入分析
More on this storyTeen mental health: When to seek help and what parents can do，详情可参考safew官方下载
For implementers, the locking model adds a fair amount of non-trivial internal bookkeeping. Every operation must check lock state, readers must be tracked, and the interplay between locks, cancellation, and error states creates a matrix of edge cases that must all be handled correctly.，推荐阅读safew官方版本下载获取更多信息