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Copy makes it trivially easy to accidentally duplicate a Rust value that is actually a thin handle to a resource, resulting in null pointers. Just make a habit of avoiding it on exported wrappers. This can be a hard muscle memory to break since we usually want Copy wherever possible in normal Rust code.
。新收录的资料是该领域的重要参考
FT Edit: Access on iOS and web
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习近平总书记指出：“经济发展和社会发展相辅相成，不能一条腿长一条腿短。五年规划之所以叫国民经济和社会发展规划，道理正在于此。”