1. len(): 返回字符串的长度。string = "Hello, World!"length = len(string)print(length) # 输出 13 2. upper(): 将字符串中的所有字符转换为大写。uppercase_string = string.upper()print(uppercase_string) # 输出 "HELLO, WORLD!"3. lower(): 将字符串中的所有字符转换为小写。lowercase_strin...
, '__package__', '__spec__', '_re', '_sentinel_dict', '_string', 'ascii_letters', 'ascii_lowercase', 'ascii_uppercase', 'capwords', 'digits', 'hexdigits', 'octdigits', 'printable', 'punctuation', 'whitespace']然后，去掉它的“魔法方法”和模块中的类：pre_lst = [pre for pre...
# 字符串的大小写转换string = "Hello, World!"lowercase_string = string.lower()print(lowercase_string) # 输出：hello, world!uppercase_string = string.upper()print(uppercase_string) # 输出：HELLO, WORLD!capitalized_string = string.capitalize()print(capitalized_string) # 输出：Hello, world!...
lowercase_letters=string.lowercase uppercase_letters=string.uppercase all_letters=string.ascii_lettersprint(lowercase_letters)# 输出: abcdefghijklmnopqrstuvwxyzprint(uppercase_letters)# 输出: ABCDEFGHIJKLMNOPQRSTUVWXYZprint(all_letters)# 输出: abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ 1. 2. 3....
upper() #全小写 lowercase_str = str1.lower() #字符串首字母大写 capitalize_str=str1.capitalize() #单词首字母大写 title_str=str1.title() print(uppercase_str) #结果为:HELLO WORLD!你好 print(lowercase_str) #结果为:hello world!你好 print(capitalize_str) #结果为:Hello world!你好 print...
1 首先在PyCharm软件中，打开一个Python项目。2 在Python项目中，新建并打开一个空白的python文件（比如：test.py）。3 在python文件编辑区中，输入：“import string”，导入 string 模块。4 输入：“x = string.ascii_lowercase”，点击Enter键。5 然后输入：“print(x)”，打印出 string.ascii_lowercase 属性...
message ='PYTHON IS FUN' # convert message to lowercaseprint(message.lower()) # Output: python is fun Syntax of String lower() The syntax oflower()method is: string.lower() lower() Parameters() lower()method doesn't take any parameters. ...
string.upper(), string.lower() and string.title() Methods are inbuilt methods inPython, these are used to format string in a particular format like uppercases, lowercase or little case format. string.upper(),string.lower()和string.title()方法是Python中的内置方法,用于将字符串格式化为特殊格式...
Since it is already lowercase, lower() would do nothing to 'ß'; casefold() converts it to "ss". lower() 只对ASCII 也就是 'A-Z'有效,但是其它一些语言里面存在小写的情况就没办法了。文档里面举得例子是德语中'ß'的小写是'ss'(这个我也不懂): s = 'ß' s.lower() # 'ß' s....
Return a copy of the string s converted to lowercase. """ return s.lower() # Convert lower case letters to UPPER CASE def upper(s): """upper(s) -> string Return a copy of the string s converted to uppercase. """ return s.upper() ...