2024-06-08 12:54:29 发布
网友
这会加密,以便('w','f')返回'b'。如何编写代码的逆代码来解密它,以便('b','f')返回'w'?你知道吗
def char_encrypt(plaintextchar, keychar): result= chr(ord('a') + ((ord(plaintextchar) - ord('a')) + (ord(keychar) - ord('a'))) % 26) ciphertextchar = result return ciphertextchar
这是标准的rot13。。。最好是为给定的字符创建一个翻译表
from string import maketrans,ascii_lowercase as lc,ascii_uppercase as uc def create_transtab(key,decode=False): offset = ord(key)-ord('a') data_plaintext = lc+ uc data_shift = lc[offset:]+lc[:offset] + uc[offset:] + uc[:offset] if not decode: return maketrans(data_plaintext,data_shift) return maketrans(data_shift,data_plaintext) def encode_text(my_text,key): tab = create_transtab(key) return my_text.translate(tab) def decode_text(my_text,key): tab = create_transtab(key,decode=1) return my_text.translate(tab) print encode_text("w","f") print decode_text("b","f")
这是标准的rot13。。。最好是为给定的字符创建一个翻译表
相关问题 更多 >
编程相关推荐