numpy.zeros_like(a)
:a
是一個ndarray
,即產生一個維度和a一樣大小的全0數組。In [1]: a = np.arange(24).reshape(4,6) ... a_0 = np.zeros_like(a) ... a.shape ... a_0.shape ... a_0 Out [1]: (4, 6) Out [1]: (4, 6) Out [1]: array([[0, 0, 0, 0, 0, 0], [0, 0, 0, 0, 0, 0], [0, 0, 0, 0, 0, 0], [0, 0, 0, 0, 0, 0]])