注意：reshape函数的  - 1（是让电脑 自己计算的意思

import numpy as np 
n = np.arange(0,25).reshape(5,5)
m = np.array([0,5,10,15,20])nn = np.repeat(n,2,axis = 1)
m = m.reshape(-1,1)nn[:,1:8:2] = np.tile(m,(1,4))
nn[:,0:-1]