參考博文
https://blog.csdn.net/Pit3369/article/details/105082439/
https://blog.csdn.net/Black_Friend/article/details/104529859
https://blog.csdn.net/Dzreal_7/article/details/83869430
https://blog.csdn.net/yunfeather/article/details/106463327
https://blog.csdn.net/crazyman2010/article/details/103705318
https://blog.csdn.net/hjxu2016/article/details/105222369
https://tensorflow.google.cn/tutorials/load_data/images?hl=zh-tw