Home Backend Development Python Tutorial Python去掉字符串中空格的方法

Python去掉字符串中空格的方法

Jun 16, 2016 am 08:44 AM
python string space

我们经常在处理字符串时遇到有很多空格的问题,一个一个的去手动删除不是我们程序员应该做的事情,今天这篇技巧的文章脚本之家就来给大家讲一下,如何用Python去除字符串中的空格。
我们先创建一个左右都有N个空格的字符串变量s,看代码:

复制代码 代码如下:
>>> s = “   脚本之家    ”
>>>
去除字符串空格,在Python里面有它的内置方法,不需要我们自己去造轮子了。
lstrip:删除左边的空格
这个字符串方法,会删除字符串s开始位置前的空格。
复制代码 代码如下:
>>> s.lstrip()
'脚本之家   '
rstrip:删除右连的空格
这个内置方法可以删除字符串末尾的所有空格,看下面演示代码:
复制代码 代码如下:
>>> s.rstrip()
'    脚本之家'
strip:删除两端的空格
有的时候我们读取文件中的内容,每行2边都有空格,能不能一次性全部去掉呢,字符符有一个内置的strip()方法可以做到。
复制代码 代码如下:
>>> s = “   脚本之家    ”
>>> s.strip()
'脚本之家'
脚本之家提示:大家可以用 dir(str) 这个方法,获得 str字符串的所有方法名单。
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