关于zlib的compress/decompress/encode与decode~

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原创 2025-06-16 23:29:01 328 阅读 AI 写同款· GEO 优化 ›

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zlib是一个python的常用压缩库，在python编码过程中经常会用到compress/decompress/encode与decode这些方法，那么它们之间的具体作用和差别是什么呢？通过以下code可以作一个明显的对比:

    data_str = "lv2_002115=09:47:01,8517436,9.380,4200|09:47:01,8517461,9.380,4800"
    print(data_str)
    print(len(data_str))
    print("")

    data_encode = data_str.encode("utf-8")
    print(data_encode)
    print(len(data_encode))
    print("")

    data_compress = zlib.compress(data_encode, wbits=-zlib.MAX_WBITS)
    print(data_compress)
    print(len(data_compress))
    print("")

    data_decompress = zlib.decompress(data_compress, -zlib.MAX_WBITS)
    print(data_decompress)
    print(len(data_decompress))
    print("")

    data_decode = data_decompress.decode("utf-8")
    print(data_decode)
    print(len(data_decode))
    print("")

output:

lv2_002115=09:47:01,8517436,9.380,4200|09:47:01,8517461,9.380,4800
66

b'lv2_002115=09:47:01,8517436,9.380,4200|09:47:01,8517461,9.380,4800'
66

b'\xcb)3\x8a700244\xb55\xb0\xb421\xb720\xd4\xb1054716\xd3\xb1\xd43\xb60\xd01120\xa8A\x9533\x84\xc9Y\x18\x18\x00\x00'
50

b'lv2_002115=09:47:01,8517436,9.380,4200|09:47:01,8517461,9.380,4800'
66

lv2_002115=09:47:01,8517436,9.380,4200|09:47:01,8517461,9.380,4800
66

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