Python built-in functions: strip ()

Article reproduced in: Http://www.cnblogs.com/itdyb/p/5046472.html (Bo Master: Bobby 12)

This explains the strip () function in the Python API:

Declaration: S is a string, RM is a sequence of characters to be deleted

S.strip (RM) Remove the characters from the beginning and end of the s string in the RM delete sequence

S.lstrip (RM) Delete the character in the S string at the beginning of the RM delete sequence

S.rstrip (RM) Removes the character from the end of the S string that is located in the RM delete sequence

Attention:

1. When RM is empty, the default is to remove the whitespace characters (including ' \ n ', ' \ R ', ' \ t ', ')

For example:

>>> a= '   Hello World   ' >>> a '   Hello World   ' >>> a.strip () ' Hello World ' > >> x= ' \t\r\npython ' >>> x ' \t\r\npython ' >>> x.strip () ' Python '

The 2.rm delete sequence is deleted as long as the character on the edge (beginning or end) is within the delete sequence.

For example:

>>> astring= ' 123love ' >>> astring ' 123love ' >>> astring.strip (' + ') ' 3love '

Python built-in functions: strip ()