1、字符串序列匹配度衡量

• 类似于计算编辑距离 ```python from difflib import SequenceMatcher

def get_match_raio(text1, text2, junk=None): “”” 计算两个文本序列的匹配度得分(类似于编辑距离); “””

# jy: 去除文本中的空格;
text1 = "".join([i for i in text1.split() if i != ""])
text2 = "".join([i for i in text2.split() if i != ""])
# jy: 统一大小写(如果有英文字符, 统一转为小写)
text1 = text1.lower()
text2 = text2.lower()
sequence_matcher = SequenceMatcher(junk, text1, text2)
match_ratio = sequence_matcher.ratio()
return match_ratio

```