您忘记了SequenceMatcher的第一个参数。
>>> import difflib>>> >>> a='abcd'>>> b='ab123'>>> seq=difflib.SequenceMatcher(None, a,b)>>> d=seq.ratio()*100>>> print d44.4444444444
http://docs.python.org/library/difflib.html

您忘记了SequenceMatcher的第一个参数。
>>> import difflib>>> >>> a='abcd'>>> b='ab123'>>> seq=difflib.SequenceMatcher(None, a,b)>>> d=seq.ratio()*100>>> print d44.4444444444
http://docs.python.org/library/difflib.html