Python,替换密码 [英] Python, substitution cipher
问题描述
>>>加密('3491068257','132')
'914'
>>> encrypt '3491068257','111')
'999'
感谢您的帮助: )
from string import maketrans
zero_through_nine = .join(str(i)for i in range(10))
out_tab =3491068257
trantab = maketrans(zero_through_nine,out_tab)
print111.translate(trantab)
希望你看看它来理解它....
I need to write a substitution cipher for the digits 0,1,2,3,...,9 substitutes each digit in 0,1,2,3,...,9. It can be represented as a 10 digit string specifying how each digit in 0,1,2,3,...,9 is substituted. For example, the 10 digit string '3941068257' specifies a substitution cipher in which digit 0 is substituted with digit 3, 1 with 9, 2 with 4, and so on. To encrypt a non negative integer, substitute each of it's digits with the digit specified by the encryption key. Implement function cipher() that takes as in put a 10 digit string key and a digit and a digit string (i.e., the clear text to be encrypted) and returns the encryption of the clear text.
>>>encrypt('3491068257', '132')
'914'
>>>encrypt('3491068257', '111')
'999'
Thank you for your help :)
from string import maketrans
zero_through_nine = "".join(str(i) for i in range(10))
out_tab = "3491068257"
trantab = maketrans(zero_through_nine,out_tab )
print "111".translate(trantab)
hopefully you look into it to understand it....
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