from?copy?import?copy
from?itertools?import?product
from?tqdm?import?tqdm

def?calcAscii（s）:
????i?=?0
????for?c?in?s:
????????if?ord（c）?==?0x0d?or?（ord（c）?>=?0x20?and?ord（c）?????????????i?=?i?+?1
????return?i

def?ratio（src?length）:
????TotalOfEquals?=?0
????total?=?0
????for?i?in?range（0?length）:
????????for?j?in?range（i+1?length）:
????????????total?+=?1
????????????if?src[i]?==?src[j]:
????????????????TotalOfEquals?+=?1
????return?1.0?*?TotalOfEquals?/?total?

def?CalcCoin（cipher）:
????clen?=?len（cipher）
????rotioArray?=?[]
????for?x?in?range（126）:
????????tempfloat?=?0.0
????????averRatio?=?0.0
????????for?n?in?range（x）:
????????????index?=?0
????????????tempArray?=?‘‘
????????????tempTotal?=?0
????????????m?=?n
????????????while?m?????????????????tempArray?=?tempArray?+?cipher[m]
????????????????tempTotal?+=?1
????????????????m?+=?x
????????????tempfloat?=?ratio（tempArray?tempTotal）
????????????averRatio?=?averRatio?+?tempfloat
????????rotioArray.append（[averRatio?/?x?x]）
????rotioArray.sort（）
????return?rotioArray
????
encraw?=?open（‘file‘?‘rb‘）.read（）

print?CalcCoin（encraw）

‘‘‘
def?psgen（minlenmaxlen=4）:
??iter?=?[
??????‘0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ_!@#$%^&*（）_+-=‘~[]{}\\|;\‘:“./<>?‘
??????#
??????]
??for?r?in?iter:
????for?repeat?in?range（minlenmaxlen+1）:
??????for?ps?in?product（rrepeat=repeat）:
????????yield?‘‘.join（ps）

def?trykey（keyencraw）:
????global?maxfound
????enc?=?copy（encraw）
????for?i?in?range（len（enc））:
????????if?key[i?%?