def is_arithmetic(l): delta = l[1] - l[0] for index in range(len(l) - 1): if not (l[index + 1] - l[index] == delta): return False return True print(is_arithmetic([5, 7, 9, 11])) print(is_arithmetic([5, 8, 9, 11]))
python 递增递减数列
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转载自www.cnblogs.com/sea-stream/p/9961970.html
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