Split an array into multiple sub-arrays as views into `ary`.
Parameters
----------
ary : ndarray
Array to be divided into sub-arrays.
indices_or_sections : int or 1-D array
If `indices_or_sections` is an integer, N, the array will be divided
into N equal arrays along `axis`. If such a split is not possible,
an error is raised.
If `indices_or_sections` is a 1-D array of sorted integers, the entries
indicate where along `axis` the array is split. For example,
``[2, 3]`` would, for ``axis=0``, result in
- ary[:2]
- ary[2:3]
- ary[3:]
If an index exceeds the dimension of the array along `axis`,
an empty sub-array is returned correspondingly.
axis : int, optional
The axis along which to split, default is 0.
Returns
-------
例子1
arr = np.arange(9.0) np.split(arr, 3) # 打印输出 [array([0., 1., 2.]), array([3., 4., 5.]), array([6., 7., 8.])]
例子2
arr = np.arange(8.0) np.split(arr, [3, 5, 6, 10]) # 打印输出 [array([0., 1., 2.]), array([3., 4.]), array([5.]), array([6., 7.]), array([], dtype=float64)]
