数组随机打乱顺序：
numpy.random.shuffle(x)
This function only shuffles the array along the first index of a multi-dimensional array 多维只按行打乱
数组合并
numpy.hstack(tup)
The arrays must have the same shape, except in the dimensioncorresponding toaxis(the first, by default).等价np.concatenate(tup, axis=1) 列合并
样本路径获取
os.listdir(path)
返回path路径下文件及文件夹名，不包括‘.’以及‘..’
tensorflow数据读取
tf.train.slice_input_producer
返回
