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str2float

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只求最长,不求清晰 QWQ

def str2float(s):
    ss=s.split('.')
    return reduce(lambda x,y:x*10+y,map(lambda c:int(c),ss[0]))+0.1*reduce(lambda x,y:x*0.1+y,map(lambda c:int(c),ss[1][-1::-1]))

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