這是你要的嗎？
a = np.array([[1,2],[3,4],[5,6],[7,8]])
array([[1, 2],
[3, 4],
[5, 6],
[7, 8]])
b = np.array([1,2])
array([1, 2])
np.multiply(a.reshape(2,4).T, b).T.reshape(4,2)
array([[ 1, 2],
[ 3, 4],
[10, 12],
[14, 16]])

了解，感謝!