lstrip和rstrip
Python provides three methods that can be used to trim whitespaces from the string object.
Python提供了三种方法，可用于从字符串对象中修剪空格。
Python修剪字符串 (Python Trim String)
strip(): returns a new string after removing any leading and trailing whitespaces including tabs (\t).strip（）：删除任何包含制表符（\ t）的前导和尾随空格后，返回一个新字符串。rstrip(): returns a new string with trailing whitespace removed. It’s easier to remember as removing white spaces from “right” side of the string.rstrip（）：返回删除了结尾空格的新字符串。 在字符串的“右侧”删除空格时，更容易记住。lstrip(): returns a new string with leading whitespace removed, or removing whitespaces from the “left” side of the string.lstrip（）：返回一个新字符串，其中删除了前导空格，或者从字符串的“左侧”删除了空格。All of these methods don’t accept any arguments to remove whitespaces. If a character argument is provided, then they will remove that characters from the string from leading and trailing places.
所有这些方法都不接受任何用于删除空格的参数。 如果提供了字符参数，则它们将从开头和结尾处的字符串中删除该字符。
Let’s look at a simple example of trimming whitespaces from the string in Python.
让我们看一个简单的示例，该示例从Python中的字符串中修剪空格。
s1 = ' abc 'print(f'String =\'{s1}\'')print(f'After Removing Leading Whitespaces String =\'{s1.lstrip()}\'')print(f'After Removing Trailing Whitespaces String =\'{s1.rstrip()}\'')print(f'After Trimming Whitespaces String =\'{s1.strip()}\'')
Output:
输出：
String =' abc 'After Removing Leading Whitespaces String ='abc 'After Removing Trailing Whitespaces String =' abc'After Trimming Whitespaces String ='abc'
Let’s look at some more examples with strings having a new-line and tabs.
我们来看一些带有换行符和制表符的字符串的更多示例。
>>> s1 = ' X\n Y \nZ \t'>>> s1.strip()'X\n Y \nZ'>>> s1.rstrip()' X\n Y \nZ'>>> s1.lstrip()'X\n Y \nZ \t'
GitHub Repository.GitHub存储库中签出更多Python字符串示例。
翻译自: /23625/python-trim-string-rstrip-lstrip-strip
lstrip和rstrip
