在numpy中的2d数组中的特定位置插入行？

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numpy.insert

>>> import numpy as np>>> a = np.zeros((2, 2))>>> aarray([[ 0.,  0.],       [ 0.,  0.]])# In the following line 1 is the index before which to insert, 0 is the axis.>>> np.insert(a, 1, np.array((1, 1)), 0)  array([[ 0.,  0.],       [ 1.,  1.],       [ 0.,  0.]])>>> np.insert(a, 1, np.array((1, 1)), 1)array([[ 0.,  1.,  0.],       [ 0.,  1.,  0.]])