注明原来的网址为:https://docs.python.org/3.8/library/string.html string.ascii_letters返回所有的大写、小写字母 string.ascii_lowercase返回小写字母,即:abcdefghijklmnopqrstuvwxyz string.ascii_uppercase返回大写字母,即:ABCDEFGHIJKLMNOPQRSTUVWXYZ string.ascii_digits返回 0123456789 string.ascii_hexdigits返回 0123...
python:字符串常量 此模块中定义的常量为: string.ascii_letters 下文所述 ascii_lowercase 和 ascii_uppercase 常量的拼连。 该值不依赖于语言区域。 string.ascii_lowercase 小写字母 ‘abcdefghijklmnopqrstuvwxyz’。 该值不依赖于语言区域,不会发生改变。 string.ascii_uppercase 大写字母 ‘ABCDEFGHIJKLMNOPQRSTU...
Control Characters: These are used to control the flow of programs, such as newline (\n), carriage return (\r), tab (\t), etc.Numeric Characters: '0' through '9'.Uppercase Letters: 'A' through 'Z'.Lowercase Letters: 'a' through 'z'.Punctuation and Special Characters: Such as !,...
string.ascii_letters：所有的ASCII字母（大写和小写）。string.ascii_lowercase：所有的ASCII小写字母。string.ascii_uppercase：所有的ASCII大写字母。string.digits：所有的数字字符（0-9）。pythonCopy codeimport stringprint(string.ascii_letters) # 输出 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ'print(...
ASCII lowercase letters refer to the 26 alphabetic characters from 'a' to 'z' in the ASCII character set.
ascii_lowercase是Python字符串模块string中定义的一个常量,它包含了所有的小写字母。使用这个常量可以方便地引用和操作这些字母。 示例代码 下面是使用ascii_lowercase和相关函数的一些示例代码: import string lowercase_letters = string.ascii_lowercase print(lowercase_letters) # 输出:'abcdefghijklmnopqrstuvwxyz' # ...
import random import string def random_string(length=7): """Generate a random string of lowercase letters and digits.""" return ''.join(random.choices(string.ascii_lowercase + string.digits, k=length)) print(random_string()) # 输出类似于:'2b1t0bs' 复制 此外,我们还可以使用string模块的其...
ASCII characters include uppercase and lowercase letters A through Z, numerals 0 through 9 and basic punctuation symbols. Codes 32-127 are all printable ASCII characters, representing letters, numbers, punctuation marks, plus some special characters like ^, [, \, ~ and other miscellaneous symbols...
Locating the lowercase letters in columns 6 and 7 caused the characters to differ in bit pattern from the upper case by a single bit, which simplified case-insensitive character matching and the construction of keyboards and printers. 如果是大写字母 修改1位之后,都变成小写字母 然后直接查找就好了...
You can also convert uppercase letters to lowercase letters with Bash using the ASCII table. When you examine the 7-bit ASCII table, you will see that the difference between the upper and lowercase values of the same letters is always 32. Using this, the logic of a program that can conve...