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      <title>Python mmap 實戰：記憶體映射、隨機存取與大型檔案搜尋</title>
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dedup note: The planned `python-heapq` topic was rejected because its slug directory already exists as a draft. This replacement is distinct from ../python-pathlib/, ../python-fsspec/, ../python-struct/, ../python-csv/, and ../python-profiling/: those posts focus on path APIs, storage backends, binary layouts, CSV streams, and general profiling. This article focuses specifically on operating-system memory mapping, byte-oriented random access, searching, write-through versus copy-on-write updates, aligned partial mappings, and mapping lifetime.
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