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博客园 - zzuCharles

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Python 比较两个字符串的相似度
zzuCharles · 2020-04-25 · via 博客园 - zzuCharles
# METHOD1
1
from difflib import SequenceMatcher 2 def similarity(a, b): 3 return SequenceMatcher(None, a, b).ratio() 4 5 print(similarity('CharlesCC', 'Charles'))

0.875

# METHOD2

def similar(str1, str2): 
    str1 = str1 + ' ' * (len(str2) - len(str1)) 
    str2 = str2 + ' ' * (len(str1) - len(str2)) 
    return sum(1 if i == j else 0 
               for i, j in zip(str1, str2)) / float(len(str1)) 
    
 
print (similar('CharlesCC', 'Charles')) 

0.777777

脑子是空的不要紧,主要是不要进水······

posted @ 2020-04-25 12:00  zzuCharles  阅读(6287)  评论(0)    收藏  举报