代码如下: importargparsefromstringimportascii_uppercasefromtypingimportList,TuplefromcipherimportCipher,non_alpha_patternclassPolyalphabeticCipher(Cipher):def__init__(self,alphabet:str,keyword:str,input_file:str,o
...上代码: s = input('请输入字符串:')#输入 dic = {'letter': 0, 'integer': 0}#定义一个字典,分别表示字母,空格 #遍历输入的字符 for i in s:...< 'Z': dic['letter'] += 1 elif i in '0123456789': dic['integer'] += 1 print('统计字符串...:', s) for i in dic: print...
>>> red = AtlanticAveSemaphore.RED >>> red is AtlanticAveSemaphore.RED True >>> red is not AtlanticAveSemaphore.RED False >>> yellow = AtlanticAveSemaphore.YELLOW >>> yellow is red False >>> yellow is not red True >>> pedestrian_red = AtlanticAveSemaphore.PEDESTRIAN_RED >>> red is ...
A pangram is a sentence where every letter of the English alphabet appears at least once. Given a string sentence containing only lowercase English letters, return true if sentence is a pangram, or false otherwise. Example 1: Input: sentence = "thequickbrownfoxjumpsoverthelazydog" Output: tr...
凯撒加密是一种经典加密算法，把文本中的每个英文字母替换为字母表中后面第k个字母。该加密算法的抗攻击...
import string # use this to get the alphabet print("Input a character") def getch(): alphabet = list(string.ascii_lowercase) while True: for letter in alphabet: # detect when a letter is pressed if keyboard.is_pressed(letter): return letter for num in range(10): # detect numbers 0-...
If you havetwo or more letters with the same frequency, then return the letter which comes first in the latin alphabet. For example -- "one" contains "o", "n", "e" only once for each, thus we choose "e". Input:A text for analysis as a string (unicode for py2.7). ...
The key is an integer from 1 to 25. This cipher rotates the letters of the alphabet (A to Z). The encoding replaces each letter with the 1st to 25th next letter in the alphabet (wrapping Z to A). So key 2 encrypts "HI" to "JK", but key 20 encrypts "HI" to "BC". This ...
14. Check if a String is a PangramWrite a Python function to check whether a string is a pangram or not.Note : Pangrams are words or sentences containing every letter of the alphabet at least once. For example : "The quick brown fox jumps over the lazy dog" Sample Solution:...
the entire alphabet is written out in reverse starting at that letter. This attack can be accelerated using a set of strips prepared with the alphabet written down in reverse order. The strips are then aligned to form the ciphertext along one row, and the plaintext should appear in one of...