Question

# Ceasar Cipher


import pyperclip

#this string to be encrypted/decrypted
message = "this is my secret message"

#the encryption/decryption key
key = 13

#Tells the program to encrypt or decrypt string
mode = "Encrypt"

#letters that can be encrypted
LETTERS = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"

# stores the encrypted/decrypted form of the message
translated = ''

# capitalize the string in message
message = message.upper()

# run the encryption/decryption code on each symbol in the message string
for symbol in message:
        if symbol in LETTERS:
            # get the encrypted (or decrypted) number for this symbol
            num = LETTERS.find(symbol) # get the number of the symbol
        if mode == 'encrypt':
            num = num + key
        elif mode == 'decrypt':
            num = num - key

        # handle the wrap-around if num is larger than the length of
        # LETTERS or less than 0
        if num >= len(LETTERS):
            num = num - len(LETTERS)
        elif num < 0:
            num = num + len(LETTERS)

        # add encrypted/decrypted number's symbol at the end of translated
        translated = translated + LETTERS[num]

        else:
             translated = translated + symbol

# print the encrypted/decrypted string to the screen
print(translated)

# copy the encrypted/decrypted string to the clipboard
pyperclip.copy(translated)

Answer 1

您不能拥有声明

   translated = translated + LETTERS[num]

在if，elif和elses之间

。

另外，下次再说清楚你的问题了。

其他声明问题

1 个答案: