从python中的字节中提取LSB位 [英] Extract LSB bit from a Byte in python

问题描述

我在变量 DATA中有一个字节。我想从中提取LSB位并打印。
我是python的新手，我发现很多文章都具有复杂的按位加法逻辑，而所有这些都很难理解。
我正在寻找一个简单的逻辑，例如我们对字符串的处理，例如DATA [7：1]
请帮帮我...

I have a byte in variable 'DATA'. I want to extract the LSB bit out of it and print it. I'm very new to python, I found many articles with complex bitwise addition logic and all which was very tough to understand. I'm looking for a simple logic like we do with the strings eg DATA[7:1] Please help me out...

推荐答案

您的字节是 int 吗？如果是这样，只需将<（c $ c> 1 ）与（（$code>& ）按位进行AND（或者，如果您想更明确一点，二进制文字 0b1 ）来获取最低有效位。

Is your "byte" an int? If so, just take bitwise AND (&) with 1 (or, if you want to be more explicit, the binary literal 0b1) to get the least significant bit.

>>> x = 14
>>> x & 1
0
>>> x = 15
>>> x & 1
1

您的字节是个字节对象？如果是这样，只需对其进行索引并进行按位与。

Is your "byte" a bytes object? If so, just index into it and take bitwise AND.

>>> y = bytes([14, 15])
>>> y[0] & 1
0
>>> y[1] & 1
1

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