8 lowercase = string.ascii_lowercase 9 10 def CaseInvert(str): 11 12 # make a blank list to store the changed character 13 _list = [] 14 15 for i in str: 16 17 # uppercase to lowercase 18 if i in uppercase: 19 i = i.lower() 20 21 # lowercase to uppercase 22 elif i in...
Write a Python program to convert all the characters into uppercase and lowercase and eliminate duplicate letters from a given sequence. Use the map() function. Sample Solution: Python Code : # Define a function named change_cases that converts a character to its upper and lower casesdefchange...
Example 2: Change string case – if string is in uppercase, convert it to lowercase and if it is in lowercase convert it to uppercase. 示例2:更改字符串大小写–如果字符串为大写,则将其转换为小写,如果为小写,则将其转换为大写。 There is a string, we have to change its case, if string ...
return: """ if not random_code_pool: code_pool = string.ascii_uppercase + string.digits random_code_pool = [] for i in range(num): s = '' for _ in range(length): s += random.choice(code_pool) if s and s not in random_code_pool: random_code_pool.append(s) # 写入方法。
从本实例学到什么字母大写转小写的方法lower()的用法字母小写转大写的方法upper()的用法方法是什么对象是什么实例程序代码#例2-3-5 字符串大小写转换 name = "Ada Lovelace" print(name.upper()) #upper()方法把所有字母转换成大写print(name.lower()) #lower()方法把所有字母转换成小写print("www. ...
uppercase; else, it will return the same original string itself. To do the opposite of this method, an upper() function does exactly the opposite of the lower() function; it returns the capital letters from the given string, which is in lowercase and converts it into upper. The lower(...
importstringimportrandom defstring_generator(size):chars=string.ascii_uppercase+string.ascii_lowercasereturn''.join(random.choice(chars)for_inrange(size))defstring_num_generator(size):chars=string.ascii_lowercase+string.digitsreturn''.join(random.choice(chars)for_inrange(size))# Random String test=...
upper=string.ascii_uppercase before=string.ascii_letters after= lower[k:] + lower[:k] + upper[k:] +upper[:k] table=''.maketrans(before, after)returns.translate(table) s= input("请输入一个字符串:") k= int(input("请输入一个整数密钥:"))print(kaisa(s, k))#ascii_lowercase = 'abcd...
Python’s upper() function converts all the lowercase characters in a string to uppercase characters and returns the modified string. One common application of the upper() function in Python is to check if the given two strings are the same or not. We’ll show you how to do this using...
>>> upstr = string.ascii_uppercase'ABCDEFGHIJKLMNOPQRSTUVWXYZ' >>> # 指定位置,左边从0开始,右边从-1开始 >>> upstr[0],upstr[2],upstr[-1],upstr[-2] ('A', 'C', 'Z', 'Y') >>> # 区间切分 左闭右开 >>> upstr[0:],upstr[23:],upstr[:-1],upstr[:-23],upstr[0:2],upstr...