21321421421

#numpy,深度学习，读取图片，转换成矩阵，文件的读取（只有列索引）
import numpy

import numpy as np
#1.生成数据
arr1 = np.arange(1,100,2)
print(arr1)
arr2 = np.array([
    [1,2,3],
    [4,5,6]])
print(arr2.shape)

#2.查看
print(arr1[0])
print(arr2[1][2])

#3。求和
print(arr2[1].sum())