受限玻尔兹曼机（Restricted Boltzmann Machine，RBM）代码2

### 环境：python 3.7, 32位 运行结果： [BernoulliRBM] Iteration 1, pseudo-likelihood = -25.39, time = 0.17s[BernoulliRBM] Iteration 2, pseudo-likelihood = -23.77, time = 0.24s[BernoulliRBM]...