手机键盘密码

# write by 2021/7/23
# 手机键盘密码
import re
DIC = ["", "", " abc", " def", " ghi", " jkl", " mno", " pqrs", " tuv", " wxyz"]
def encrypt_p_keyboard(string):
    ciphertext = ""
    string = string.replace(" ", "")
    for i in string:
        for j in DIC:
            if i in j:
                ciphertext += str(DIC.index(j)) + str(j.index(i)) + " "
                break
        else:
            return -1
    return ciphertext[:-1]
def decrypt_p_keyboard(string):
    plaintext = ""
    string = string.replace(" ", "")
    test = re.findall("\d+", string)
    if not test or test[0] != string:
        return -1
    ciphertext_lis = re.findall("\d{2}", string)
    try:
        for i in ciphertext_lis:
            plaintext += DIC[int(i[0])][int(i[1])]
    except:
        return -1
    return plaintext
if __name__ == '__main__':
    ciphertext_ = encrypt_p_keyboard("keyboard")
    plaintext_ = decrypt_p_keyboard(ciphertext_)
    print(f"{plaintext_}: {ciphertext_}")