A basic introduction to Python teaches you how to use the strip() function to remove spaces\n\r\t

python3.4 study notes (20) python strip() function to remove spaces\n\r\tUsage of function

In Python, there are three space removal functions in the string processing function (including '\ n', '\r', '\t', ' ') function:

strip removes the spaces on the left and right at the same time
lstrip removes the spaces on the left
rstrip removes the spaces on the right

Specific examples are as follows:

>>>a=" gho stwwl "
>>>a.lstrip() 'gho stwwl '
>>>a.rstrip() ' gho stwwl'
>>>a.strip() 'gho stwwl'

Statement: s is a string, rm is the character sequence to delete
s.strip(rm) deletes the s character The characters at the beginning and end of the string, located in the rm deletion sequence
s.lstrip(rm) Delete the characters at the beginning of the s string, located in the rm deletion sequence
s.rstrip(rm) Delete the s string At the end, the characters located in the rm deletion sequence

Note:
1. When rm is empty, whitespace characters (including '\n', '\r', '\t', ' are deleted by default ')

>>> a = ' 123'
>>> a.strip()
'123'
>>> a='\t\tabc'
'abc'
>>> a = 'sdff\r\n'
>>> a.strip()
'sdff'

2. The rm deletion sequence here is to delete the characters on the edge (beginning or end) as long as they are within the deletion sequence.

>>> a = '123abc'
>>> a.strip('21')
'3abc' 结果是一样的
>>> a.strip('12')
'3abc'

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5. The wonderful uses of the strip() function in Python that you don’t know

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