python创建多维数组的3种方式：

#coding=utf-8
import numpy as np
#1
image =[[(col+1)*(row+1) for col in range(5)] for row in range(3)]
a = np.array(image)
print(a)

#2
new_image =np.zeros((3,5))

#3
b = np.arange(12).reshape(3,4)
print(b)