代码质量检查
这段Swift代码，你能否帮我检查一下代码的命名规范和代码风格，是否存在内存泄漏和空指针异常，代码的可读性和可维护性等问题，并提供相应的建议来提高代码的质量和可靠性。
Added May 19, 20260 runsPrompt content hidden — try it to see the output
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