import numpy as np a = np.ones(4) b = np.arange(2, 10, 2) c = a @ b #a作为行向量,b作为列向量 d = np.arange(16).reshape(4,4) f = a @ d #a作为行向量 g = d @ a #a作为列向量 print(a), print(b), print(c), print(d), print(f),print(g)
