从具有给定步长/步长的numpy数组中提取子数组
a.
a = numpy.array([1,2,3,4,5,6,7,8,9,10,11])
numpy.array([[1,2,3,4,5],[4,5,6,7,8],[7,8,9,10,11]])
result_matrix = np.zeros((3, 5))for i in range(0, len(a), 3): result_matrix[i] = a[i:i+5]
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