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第三题

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静谧_聒噪_心

#1 Created at ... [Delete] [Delete and Lock User] 
def str2float(s):    i=s.index(".")    dicts={'0':0,"1":1,"2":2,"3":3,"4":4,"5":5,"6":6,"7":7,"8":8,"9":9}    new_s=s[:i]+s[(i+1):]    def d(x):        return dicts[x]    def num(x,y):        return x*10+y    return reduce(num,map(d,new_s))/(10**(len(s)-i-1))

戒尺之下

#2 Created at ... [Delete] [Delete and Lock User]

想问个问题，为什么要定义这个dicts,它的作用是什么？

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