def normalize(name): return ''.join([value.upper() if x==0 else value.lower() for x,value in enumerate(name) ])
第二题： def prod(L): def mul(x,y): return x*y return reduce(mul,L)
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小兵来巡山
def normalize(name): return ''.join([value.upper() if x==0 else value.lower() for x,value in enumerate(name) ])