import numpy as np

A = np.array([1,1,1])[:,np.newaxis]

B = np.array([2,2,2])[:,np.newaxis]

#合并

C = np.vstack((A,B))

D = np.hstack((A,B))

#0，1纵横

E =np.concatenate((A,B,B,A),axis=0)

print(E)

print(C)

print(D)

print(A.shape,C.shape)

print(A.shape,D.shape)

print(A.T.shape)

#

print(A[np.newaxis,:].shape)

print(A[:,np.newaxis].shape)