from functools import reduce
def str2float(s): def char2num(s): digits = {'0': 0, '1': 1, '2': 2, '3': 3, '4': 4, '5': 5, '6': 6, '7': 7, '8': 8, '9': 9} return digits[s] def fn(x,y): return x10 + y s1 ,s2 = s.split('.') l2 = len(s2) return reduce(fn,map(char2num,s1)) + reduce(fn,map(char2num,s2)) 0.1**l2
Sign in to make a reply
用户3722549263
from functools import reduce
def str2float(s): def char2num(s): digits = {'0': 0, '1': 1, '2': 2, '3': 3, '4': 4, '5': 5, '6': 6, '7': 7, '8': 8, '9': 9} return digits[s] def fn(x,y): return x10 + y s1 ,s2 = s.split('.') l2 = len(s2) return reduce(fn,map(char2num,s1)) + reduce(fn,map(char2num,s2)) 0.1**l2