创建加解密程序

Question

我需要有人编辑我的代码来调试它。它不会显示任何加密或解密的文本，我认为这是因为格式混乱但我不知道。如果您能提供帮助，我们将不胜感激。（我必须包括函数和用户输入）

result = ''
text = ''


text = input("Do you want to encrypt or decrypt the message?\n 1 to encrypt, 2 to decrypt or 0 to exit program. ")
def toList(text):
  text.split()
  return text

decrypted = b"abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ "
encrypted = b"qwertyuiopasdfghjklzxcvbnmQWERTYUIOPASDFGHJKLZXCVBNM "

encrypt_table = bytes.maketrans(decrypted, encrypted)
decrypt_table = bytes.maketrans(encrypted, decrypted)

text = input('Enter message for encryption: ')
def encrypt(text):
  result = ''
  text = ''
  result = text.translate(encrypt_table)
  print(result + '\n\n')


cipherText = input('Enter message to decrypt: ')
def decrypt(cipherText):
    result = ''
    message = ''
    result = message.translate(decrypt_table)
    print(result + '\n\n')


if text == '1':
  encrypt(text)
  print(result + '\n\n')
elif text == '2':
  decrypt(cipherText)

elif text != '0':
  print('You have entered an invalid input, please try again. \n\n')

Answer 1

你有很多困惑。例如，看 encrypt。你传入 text，然后立即设置 text=''，从而破坏输入的消息。同样，在decrypt中，你传入cipherText，但你运行message.translate。你的函数需要 return 它们的结果，而不是打印它们。让调用者决定如何处理 returned 结果。

此外，将函数集中在模块的顶部是一个很好的做法，这样您就不会自欺欺人地认为调用顺序有误。

这是您的代码，经过修改后可以正常工作：

def encrypt(text):
    result = text.translate(encrypt_table)
    return result

def decrypt(message):
    result = message.translate(decrypt_table)
    return result

decrypted = b"abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ "
encrypted = b"qwertyuiopasdfghjklzxcvbnmQWERTYUIOPASDFGHJKLZXCVBNM "

encrypt_table = bytes.maketrans(decrypted, encrypted)
decrypt_table = bytes.maketrans(encrypted, decrypted)

while True:
    text = input("Do you want to encrypt or decrypt the message?\n 1 to encrypt, 2 to decrypt or 0 to exit program. ")

    if text == '1':
        text = input('Enter message for encryption: ')
        result =  encrypt(text)
        print(result)
    elif text == '2':
        cipherText = input('Enter message to decrypt: ')
        result = decrypt(cipherText)
        print(result)
    elif text == '0':
        break
    else:
        print('You have entered an invalid input, please try again. \n\n')

请注意 encrypt 和 decrypt 并不真的需要存储在临时变量中。这样做的唯一原因是为了调试更方便，在 return.

之前添加一个快速的 print(result)

创建加解密程序

Create encryption and decryption program

python

encryption