📜  如何获取 ndarray 的前几行 - 无论代码示例

📅  最后修改于: 2022-03-11 14:58:18.785000             🧑  作者: Mango

代码示例1
In [11]: a[:,:2]
Out[11]: 
array([[-0.57098887, -0.4274751 ],
       [-0.22279713, -0.51723555],
       [ 0.67492385, -0.69294472],
       [ 0.41086611,  0.26374238]])