簡短到爆的py腳本

import re

from collections import Counter

def words(text):

return re.findall(r'\w+',text.lower())

Words = Counter(words(open('big.txt').read()))

def P(word,N=sum(Words.values())):

return Words[word] / N

def correction(word):

return max(candidates(word), key=P)

def candidates(word):

return (known([word]) or known(editsl(word)) or known(editsl2(word)) or [word])

def known(words):

return set(w for w in words if w in Words)

def editsl(word):

letters = 'abcdefghijklmnopqrstuvwxyz'

splits = [(word[:i],word[i:]) for i in range(len(word)+1)]

deletes = [L + R[1:] for L, R in splits if R]

transposes = [L + R[1] + R[0] + R[2:] for L, R in splits if len(R)>1]

replaces = [L + c + R[1:] for L, R in splits if R for c in letters]

inserts = [L + c + R for L, R in splits for c in letters]

return set(deletes + transposes + replaces + inserts)

def editsl2(word):

return (e2 for e1 in edits1(word) for e2 in edits1(e1))

if __name__ == '__main__':

val = input('please inserts a word :')

string = correction(val)

print(string)

總結

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