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...
['Formatter', 'Template', '_ChainMap', '_TemplateMetaclass', '__all__', '__builtins__', '__cached__', '__doc__', '__file__', '__loader__', '__name__', '__package__', '__spec__', '_re', '_sentinel_dict', '_string', 'ascii_letters', 'ascii_lowercase', 'asc...
importre pattern=r'[a-z]'lowercase_letters_regex=re.findall(pattern,original_string) 1. 2. 3. 4. 步骤4:处理提取结果 提取的结果可能是一个列表,你可能需要对其进行进一步的处理,比如去除重复的字符。 unique_letters=list(set(lowercase_letters))# 去除重复 1. 步骤5:(可选)使用循环或条件语句进行更...
lowercase_letters=string.ascii_lowercase digits=string.digits special_chars=string.punctuation # 至少各包含一个类型的字符 password=[random.choice(uppercase_letters),random.choice(lowercase_letters),random.choice(digits),random.choice(special_chars)]# 填充剩余字符 all_chars=uppercase_letters+lowercase_let...
all_letters=string.ascii_lettersprint(lowercase_letters)# 输出: abcdefghijklmnopqrstuvwxyzprint(uppercase_letters)# 输出: ABCDEFGHIJKLMNOPQRSTUVWXYZprint(all_letters)# 输出: abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ 1. 2. 3. 4. 5. ...
# Periods and commas are removed from the end of each word, and it's set to all lowercase. normalized = [token.rstrip('.,').lower() for token in tokens] # Is there a match? If so, update the list of matching indices. if keyword.lower() in normalized: indices.append(i) return ...
c. Containing the sequence of letters pt d. All lowercase letters except for an initial capital (i.e., titlecase) a. speclist=[] for eachword in text6: if eachword.endswith(‘ize’): speclist.append(eachword) b. speclist=[] for eachword in text6: if ‘z’ in eachword: spec...
The islower() method, on the other hand, returns True if all the letters in a string are lowercase. An example of a real-life use case for this function would be you wanting to convert all the entered email addresses of your users to lowercase letters. Strings are case sensitive So ...
string.ascii_letters:所有ASCII字母字符(大小写)。 string.ascii_lowercase:所有小写ASCII字母字符。 string.ascii_uppercase:所有大写ASCII字母字符。 string.digits:所有数字字符(0-9)。 string.hexdigits:所有十六进制数字字符(0-9和a-f)。 string.octdigits:所有八进制数字字符(0-7)。
#使用re模块的findall()函数匹配字符串中的大写字母 uppercase_letters = re.findall(r'[A-Z]', string)if uppercase_letters:print("字符串中包含大写字母")else:print("字符串中不包含大写字母")#使用re模块的findall()函数匹配字符串中的小写字母 lowercase_letters = re.findall(r'[a-z]', string)