读取32位浮点二进制数据文件（小端） [英] Reading a 32 bit floating point binary data file (little endian)

问题描述

我想读取一个二进制数据文件，该文件包含python中的32位浮点二进制数据。我尝试在文件上使用hexdump，然后在python中读取hexdump。当转换回float时，某些值返回nan。我检查了合并十六进制转储值时是否出错，但找不到任何错误。这就是我在shell中所做的事情：

I want to read a binary data file that contains 32 bit floating point binary data in python. I tried using hexdump on the file and then reading the hexdump in python. Some of the values when converted back to float returned nan. I checked if I made a mistake in combining the hexdump values but couldn't find any. This is what I did this in shell:

hexdump -vc >> output.txt

hexdump -vc >> output.txt

输出为形式
c0 05 e5 3f ...等等

The output was of the form c0 05 e5 3f ... and so on

我加入了十六进制：'3fe505c0'

I joined the hex as : '3fe505c0'

这是执行此操作的正确方法吗？

Is this the correct way to do this ?

推荐答案

否。

>>> import struct
>>> struct.unpack('<f', '\xc0\x05\xe5\x3f')
(1.7892379760742188,)

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