import random # 这里引入 random，用来初始化权重，也用来打乱训练样本顺序。 import struct # 这里引入 struct，用来解析 MNIST 二进制文件头。 import urllib.request # 这里引入 urllib.request，用来自动下载 MNIST 数据集。

Encryption systems rely on “random” numbers, but conventional computers can’t generate them perfectly. New research shows that quantum physics can. By Alexander Nazaryan Researchers in Switzerland ...

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