练习一:
def normalize(name): return name.capitalize()
练习二:
def prod(L): return reduce(lambda x,y:x*y ,L)
练习三:
def str2float(s): a,b=s.split('.') return int(a) + int(b)*10**(-(len(s)-s.index('.')-1)) 真不知道怎么用reduce,map
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脑洞开天
练习一:
练习二:
练习三: