如何修剪空白? [英] How do I trim whitespace?

问题描述

是否有一个 Python 函数可以修剪字符串中的空格(空格和制表符)?

Is there a Python function that will trim whitespace (spaces and tabs) from a string?

示例:\t 示例字符串\t → 示例字符串

推荐答案

对于两边的空格使用 str.strip:

For whitespace on both sides use str.strip:

s = "  \t a string example\t  "
s = s.strip()

对于右侧的空白使用 rstrip:

For whitespace on the right side use rstrip:

s = s.rstrip()

对于左侧的空白 lstrip:

For whitespace on the left side lstrip:

s = s.lstrip()

正如 thedz 指出的那样，您可以提供一个参数来将任意字符剥离到任何这些函数中，如下所示:

As thedz points out, you can provide an argument to strip arbitrary characters to any of these functions like this:

s = s.strip(' \t\n\r')

这将从左侧、右侧去除任何空格、\t、\n 或 \r 字符字符串的一侧或两侧.

This will strip any space, \t, \n, or \r characters from the left-hand side, right-hand side, or both sides of the string.

以上示例仅从字符串的左侧和右侧删除字符串.如果您还想从字符串中间删除字符，请尝试 re.sub:

The examples above only remove strings from the left-hand and right-hand sides of strings. If you want to also remove characters from the middle of a string, try re.sub:

import re
print(re.sub('[\s+]', '', s))

应该打印出来:

astringexample

这篇关于如何修剪空白?的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！