mapping Unicode ordinals to Unicode ordinals, strings, or None. If this operation raises LookupError, the character is left untouched. Characters mapped to None are deleted. 案例: 用字符的maketrans() 和 translate() 实现凯撒加密算法 string.ascii_letters 1. 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNO...
A string is printable if all of its characters are considered printable in repr() or if it is empty. """ pass def isspace(self, *args, **kwargs): # real signature unknown """ Return True if the string is a whitespace string, False otherwise...
The .ljust(width) call returns a string consisting of the target string left-justified in a field of width characters. By default, the padding consists of the ASCII space character: Python >>> "foo".ljust(10) 'foo ' If you specify the optional fill argument, then it’s used as the...
7 8 Public module variables: 9 10 whitespace -- a string containing all characters considered whitespace 11 lowercase -- a string containing all characters considered lowercase letters 12 uppercase -- a string containing all characters considered uppercase letters 13 letters -- a string containing ...
Return a copy of the string S with trailing whitespace removed. If chars is given and not None, remove characters in chars instead."""return""#把左右的chars都截掉defstrip(self, chars=None):#real signature unknown; restored from __doc__"""S.strip([chars]) -> str ...
Return a copy of the string S, where all characters have been mapped through the given translation table, which must be a mapping of Unicode ordinals to Unicode ordinals, Unicode strings or None. Unmapped characters are left untouched.
importstring# Convert uppercase characters to their ASCII decimal numbersascii_upper_case=string.ascii_uppercase# Output: ABCDEFGHIJKLMNOPQRSTUVWXYZforone_letterinascii_upper_case[:5]:# Loop through ABCDEprint(ord(one_letter)) 1. 2. 3.
There are two more versions of this method,lstripandrstrip, which eliminate white space characters to the left or to the right of the string respectively, instead of both sides. Other methods give you information about the string itself. The methodcountreturns how many times a given substring ...
""" Return a copy of the string converted to lowercase. 返回转换为小写的字符串副本。""" pass def lstrip(self, *args, **kwargs): # real signature unknown """ Return a copy of the string with leading whitespace removed. If chars is given and not None, remove characters in chars instea...
make the first character have upper case and the rest lower case. """ pass def casefold(self, *args, **kwargs): # real signature unknown """ Return a version of the string suitable for caseless comparisons. """ pass def center(self, *args, **kwargs): # real signature unknown ""...