lowercase_letters=re.findall('[a-z]','abcdefghijklmnopqrstuvwxyz')print(lowercase_letters) 1. 2. 3. 4. 在上述代码中,我们使用了re.findall()函数来匹配小写字母,并将其转换为列表。该函数接受两个参数,第一个参数为正则表达式[a-z],用于匹配小写字母;第二个参数为要匹配的字符串'abcdefghijklmnopqrs...
importstring all_letters=string.ascii_lowercaseprint(all_letters) 1. 2. 3. 4. 输出结果为: 'abcdefghijklmnopqrstuvwxyz' 1. 可以看到,通过使用string.ascii_lowercase函数,我们得到了一个包含所有小写字母的字符串。这个函数使用了Python内置的string模块,并调用其中的ascii_lowercase变量,它包含了所有小写字母。
print(lowercase_letters) # 输出:’abcdefghijklmnopqrstuvwxyz’ “` 4. 所有字母库 除了大写字母和小写字母库外,字符串模块还提供了一个名为`string.ascii_letters`的常量,它包含了所有的字母(大写字母和小写字母)。可以使用以下代码来访问所有字母库: “`python import string all_letters = string.ascii_letter...
此外,本章前面还介绍过模块中的 __all__ 变量,该变量相当于该模块开放的功能接口,因此也可通过该模块的 __all__ 变量来查看模块内的程序单元。例如,在交互式解释器中输入如下命令: >>> string.__all__ ['ascii_letters', 'ascii_lowercase', 'ascii_uppercase', 'capwords', 'digits', 'hexdigits', ...
['Formatter', 'Template', '_ChainMap', '_TemplateMetaclass', '__all__', '__builtins__', '__cached__', '__doc__', '__file__', '__loader__', '__name__', '__package__', '__spec__', '_re', '_sentinel_dict', '_string', 'ascii_letters', 'ascii_lowercase', '...
(according to whitespace)tokens=doc.split()# Make a transformed list where we 'normalize' each word to facilitate matching.# Periods and commas are removed from the end of each word, and it's set to all lowercase.normalized=[token.rstrip('.,').lower()fortokenintokens]# Is there a ...
The Python lower() function converts a string to all lowercase. The Python isLower() method will check if the alphabetical characters in a string are all lowercase and return True or False. The lower() and isLower() functions are useful for fields like email where all letters should be ...
I need abbreviations capitalized, which .title() does, but not string.capwords(), and string.capwords() does not capitalize letters after single quotes, so I need a combination of the two. I want to use .title(), and then I need to lowercase the single letter after an apostrophe only ...
From what I understood from Google and the link above that both functions: lower() and casefold() will convert the string to lowercase, but casefold() will convert even the caseless letters such as the ß in German to ss. All of that about Greek letters, but my question in general: ...
string.__all__ # 输出信息如下['ascii_letters','ascii_lowercase','ascii_uppercase','capwords','digits','hexdigits','octdigits','printable','punctuation','whitespace','Formatter','Template'] 这里用 __all__ 变量列出的结果与前面用列表推导式列出的结果是相同的,这说明使用这两种方式都可以查看到...