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846天前from tkinter import messagebox,simpledialog,Tk |
def get_task(): |
task=simpledialog.askstring('Task','Do you want to encrypt or decrypt?') |
return task |
def get_message(): |
message =simpledialog.askstring('Message','Enter the secret message') |
return message |
def is_even(number): |
return number%2==0 |
def get_even_letters(message): |
even_letters=[] |
for counter in range(0,len(message)): |
if is_even(counter): |
even_letters.append(message[counter]) |
return even_letters |
def get_odd_letters(message): |
odd_letters=[] |
for counter in range(0,len(message)): |
if not is_even(counter): |
odd_letters.append(message[counter]) |
return odd_letters |
def swap_letters(message): |
letters_list=[] |
if not is_even(len(message)): |
message=message+'x' |
even_letters=get_even_letters(message) |
odd_letters=get_odd_letters(message) |
for counter in range(0,int(len(message)/2)): |
letters_list.append(odd_letters[counter]) |
letters_list.append(even_letters[counter]) |
new_mesage=''.join(letters_list) |
return new_mesage |
root=Tk() |
root.withdraw() |
while True: |
task=get_task() |
if task=='encrypt': |
message=get_message() |
encrypted=swap_letters(message) |
messagebox.showinfo('Ciphertext of the secret message is:',encrypted) |
elif task=='decrypt': |
message=get_message() |
decrypted=swap_letters(message) |
messagebox.showinfo('Plaintext of the secret message is:',decrypted) |
else: |
break |
root.mainloop() |
