多表代換密碼 python

        ​ import numpy import math import random def Euclid(a,b=26): x1 = 1 x2 = 0 x3 = a y1 = 0 y2 = 1 y3 = b while y3 != 0 : q = int(x3/y3) t1 = x1-q*y1

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