中科创达实训第十一天：aiot人工智能项目实战-tensorflow基础知识和简单实例

一、课件

二、课后习题

三、答案

1.

import os


def scan_image_file(path):
    result = {}
    traverse(path, result)
    return result


def traverse(path, pathsDic):
    tempFile = []
    tempName = ''
    filePath = [os.path.join(path, f) for f in os.listdir(path)]
    for itemPath in filePath:
        if os.path.isdir(itemPath):
            traverse(itemPath, pathsDic)
        elif os.path.isfile(itemPath):
            tempFile.append(itemPath.split("\\")[-1])
            tempName = itemPath.split("\\")[-2]
        else:
            print("未知，出现错误")
    pathsDic[tempName] = tempFile
    return tempName, tempFile


if __name__ == "__main__":
    PATH = "data"
    pathsDic = scan_image_file(PATH)
    print(pathsDic)

2.

import tensorflow.compat.v1 as tf
tf.disable_v2_behavior()

a = tf.constant([[2, -1], [0, 3], [-5, 4]])
b = tf.constant([[1, 0, 1, 0], [0, 1, 0, -1]])
c = tf.matmul(a, b)
d = tf.transpose(b)

with tf.Session() as sess:
    print(sess.run(c))
    print(sess.run(d))