Detailed explanation of usage scenarios of strip function in python

Python strip() function introduction, friends who need it can refer to it

Function prototype

Declaration: s is a string, rm is the character sequence to be deleted

s.strip(rm) Delete the characters in the rm deletion sequence at the beginning and end of the s string

s.lstrip(rm) Delete the characters in the rm deletion sequence at the beginning and end of the s string

s.rstrip(rm) Delete the characters in the rm deletion sequence at the end of the s string

Note:

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

For example:

The code is as follows:

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

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

For example:

The code is as follows:

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

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