十六进制和其他一些字符串的正则表达式

时间:2022-06-06 20:40:59

My aim is to read a string and where ever find an integer or hexadecimal number, replace that with "[0-9]" My string is:

我的目标是读取一个字符串,并找到一个整数或十六进制数字,用“[0-9]”替换它我的字符串是:

a = hello word 123 with the 0x54673ef75e1a
a1 = hello word 123 with the 0xf
a2 = hello word 123 with the 0xea21f
a3 = hello word 123 with the 0xfa

Have tried with following:

试过以下:

b = re.sub(r"(\d+[A-Fa-f]*\d+[A-Fa-f]*)|(\d+)","[0-9]",a)

Get the following output:

获取以下输出:

hello word [0-9] with the [0-9]x[0-9]a
hello word [0-9] with the [0-9]xf
hello word [0-9] with the [0-9]xea[0-9]
hello word [0-9] with the [0-9]xfa

But the output should be like that:

但输出应该是这样的:

hello word [0-9] with the [0-9]
hello word [0-9] with the [0-9]
hello word [0-9] with the [0-9]
hello word [0-9] with the [0-9]

2 个解决方案

#1


1  

Your pattern should be something like

你的模式应该是这样的

b = re.sub(r"(0x[a-fA-F0-9]+|\d+)","[0-9]",a)

to distinguish between hex and decimal values.

区分十六进制和十进制值。

#2


1  

Use

re.sub(r"(0x[\da-fA-F]+)|(\d+)","[0-9]",a)

See http://ideone.com/nMMNJm

#1


1  

Your pattern should be something like

你的模式应该是这样的

b = re.sub(r"(0x[a-fA-F0-9]+|\d+)","[0-9]",a)

to distinguish between hex and decimal values.

区分十六进制和十进制值。

#2


1  

Use

re.sub(r"(0x[\da-fA-F]+)|(\d+)","[0-9]",a)

See http://ideone.com/nMMNJm