struct – 操纵 c 风格的数据

该模块实现了相应 CPython 模块的一个子集，如下所述。有关更多信息，请参阅原始 CPython 文档：struct。

支持的大小/字节顺序前缀：@, <, >, !.

支持的格式代码：b, B, x, h, H, i, I, l, L, q, Q, s, P, f, d (后 2 取决于浮点支持）。

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struct.calcsize(fmt: str) → int

返回存储给定 fmt 所需的字节数。

struct.pack(fmt: str, *values: Any) → bytes

根据格式字符串 fmt 打包值。返回值是对值进行编码的字节对象。

struct.pack_into(fmt: str, buffer: _typing.WriteableBuffer, offset: int, *values: Any) → None

根据格式字符串 fmt 将值打包到从 offset 开始的缓冲区中。偏移量可能是负数，从缓冲区的末尾开始计数。

struct.unpack(fmt: str, data: _typing.ReadableBuffer) → Tuple[Any, Ellipsis]

根据格式字符串 fmt 从数据中解压。返回值是解包值的元组。缓冲区大小必须与格式要求的大小相匹配。

struct.unpack_from(fmt: str, data: _typing.ReadableBuffer, offset: int = 0) → Tuple[Any, Ellipsis]

根据格式字符串 fmt 从 offset 开始的数据中解包。偏移量可能是负数，从缓冲区的末尾开始计数。返回值是解包值的元组。缓冲区大小必须至少与表单所需的大小一样大。