python十六进制字符串中0x和\ x的含义? [英] Meaning of 0x and \x in python hex strings?

问题描述

我正在执行一些二进制操作，这些操作通常显示为hex-es.我已经将0x和\x都视为前缀.

I'm doing some binary operations which are often shown as hex-es. I have seen both the 0x and \xas prefixes.

在哪种情况下使用?

推荐答案

0x用于文字数字. "\x"用于在字符串内部表示字符

0x is used for literal numbers. "\x" is used inside strings to represent a character

>>> 0x41
65
>>> "\x41"
'A'

>>> "\x01" # a non printable character
'\x01'

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