# 第一种 大于80好一点 70?
from fuzzywuzzy import fuzz


def levenshtein_similarity(str1, str2):
    if str1 != None and str2 != None:
        return fuzz.ratio(str1.upper(), str2.upper())
    return None

# # 示例
# str1 = "o python"
# str2 = "hello python"
# similarity = levenshtein_similarity(str1, str2)
# # print(f"相似度: {similarity}")
#
#
# from sklearn.feature_extraction.text import TfidfVectorizer
# from sklearn.metrics.pairwise import cosine_similarity
#
# def cosine_similarity_strings(str1, str2):
#     vectorizer = TfidfVectorizer()
#     tfidf = vectorizer.fit_transform([str1, str2])
#     return cosine_similarity(tfidf)[0, 1]
#
# # 示例
# str1 = "hello pytho"
# str2 = "hello python"
# similarity = cosine_similarity_strings(str1, str2)
# print(f"相似度: {similarity}")
#
#
#
# import difflib
#
# def string_similarity(str1, str2):
#     return difflib.SequenceMatcher(None, str1, str2).ratio()
#
# # 示例
# str1 = "hello world"
# str2 = "hello python"
# similarity = string_similarity(str1, str2)
# print(f"相似度: {similarity}")