Python numpy.array()生成相同元素数组的示例

new_array = np.zeros((5,4))
for i in range(3):
 new_array[i] = np.array([0.25]*4)

>>> new_array

array([[0.25, 0.25, 0.25, 0.25],

  [0.25, 0.25, 0.25, 0.25],

  [0.25, 0.25, 0.25, 0.25],

  [0. , 0. , 0. , 0. ],

  [0. , 0. , 0. , 0. ]])