python 的map和reduce函数把str转为float类型，reducefloat,<python 的map

python 的map和reduce函数把str转为float类型，reducefloat,
<python 的map和reduce函数把str转为float类型>

1.[python 的map和reduce函数把str转为float类型代码][Python]代码

def str2float(s):def str2int(ns):return {'0': 0, '1': 1, '2': 2, '3': 3, '4': 4, '5': 5, '6': 6, '7': 7, '8': 8, '9': 9}[ns]def f(x,y):return x*10+yresultNum = 0numL = s.split('.')for index,numS in enumerate(numL):if index==0:resultNum = resultNum + reduce(f,map(str2int,numS))else:resultNum = resultNum + reduce(f,map(str2int,numS))*pow(10,0-len(numS))return resultNum

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