代码如下：# 定义一个字符串string = 'Hello, World!'print('源字符串为：', string)# 将字符串转换为小写形式lowercase_string = string.lower()print('字符串转换为小写：')print(lowercase_string)# 将字符串转换为大写形式uppercase_string = string.upper()print('字符串转换为大写：')print(uppercase_s...
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...
string.casefold官方说明: Casefolding is similar to lowercasing but more aggressive because it is intended to remove all case distinctions in a string. For example, the German lowercase letter'ß'is equivalent to"ss". Since it is already lowercase,lower()would do nothing to'ß';casefold()c...
Write a Python program to lowercase the first n characters in a string. Sample Solution: Python Code: # Define a string 'str1'.str1='W3RESOURCE.COM'# Convert the first four characters of the string to lowercase and concatenate them with the remaining characters.# Print the modified string....
string.ascii_lowercase 小写字母’abcdefghijklmnopqrstuvwxyz’ string.ascii_uppercase 大写的字母’ABCDEFGHIJKLMNOPQRSTUVWXYZ’ string.ascii_letters ascii_lowercase和ascii_uppercase常量的连接串 string.digits 数字0到9的字符串:’0123456789’ string.hexdigits ...
>>> a is b False >>> a == b True >>> 4.强制2个字符串指向同一个对象 sys中的intern方法强制两个字符串指向同一个对象 '''sys中的intern方法强制两个字符串指向同一个对象''' import sys a = 'abc%' b = 'abc%' print(a is b) # True ...
string.ascii_letters ascii_lowercase+ascii_uppercase的结果 。该值不依赖于本地设置。 string.ascii_lowercase 小写字母 a-z.该值不依赖于本地设置以及不会被修改。 string.ascii_uppercase 大写字母 A-Z.该值不依赖于本地设置以及不会被修改。 string.digits ...
print(my_string.translate(translation_table)) #输出:Th3s 3s 1 str3ng! Python的字符串模块提供字符串相关的高级操作。要使用它们,请导入string模块 import string print(string.ascii_letters) #所有的ascii字符 #输出:abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ print(string.ascii_lowercase) #所有的...
>>> string.lowercase 'abcdefghijklmnopqrstuvwxyz' >>> string.uppercase 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' >>> string.octdigits '01234567' >>> string.punctuation '!"#$%&\'()*+,-./:;<=>?@[\\]^_`{|}~' >>> string.printable '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ!"#...
7) string.lowercase A string containing all the characters that are considered lowercase letters. On most systems this is the string 'abcdefghijklmnopqrstuvwx yz'. Do not change its definition — the effect on the routines upper() and swapcase() is undefined. The specific value is locale-depend...