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machine-learning/homework_02_numpy_matplotlib/1-5/解题说明.md

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1.5 翻转数组

(1). 解题思路

​ python中的列表数组等支持切片操作，并且切片操作中可以指定步长，如果步长为负，则倒着走，这里需要翻转数组，只需要把步长设为-1即可。

(2). 运行结果