#?-*-?coding:?utf-8?-*-
import?tensorflow?as?tf
import?numpy?as?np
import?os
import?matplotlib.pyplot?as?plt

class?Batch（object）:
????def?__init__（self
?????????????????images=None
?????????????????labels=None
?????????????????batch_size=None
?????????????????shuffle=True）:
????????self.images?=?images
????????if?labels?is?None:
????????????self.exit_y?=?False
????????else:
????????????self.exit_y?=?True
????????????self.labels?=?labels
????????self.batch_size?=?batch_size
????????self.shuffle?=?shuffle
????????
????????self._images?=?images
????????self._labels?=?labels
????????self._num_examples?=?images.shape[0]
????????self._epochs_completed?=?0
????????self._index_in_epoch?=?0
????????
????def?next_batch（self）:
????????“““Return?the?next?‘batch_size‘?examples?from?this?data?set.“““
????????start?=?self._index_in_epoch
????????#?Shuffle?for?the?first?epoch
????????if?self._epochs_completed?==?0?and?start?==?0?and?self.shuffle:
????????????perm0?=?np.arange（self._num_examples）
????????????np.random.shuffle（perm0）
????????????self._images?=?self.images[perm0]
????????????if?self.exit_y:?self._labels?=?self.labels[perm0]
????????#?Go?to?the?next?epoch
????????if?start?+?self.batch_size?>?self._num_examples:
????????????#?Finished?epoch
????????????self._epochs_completed?+=?1
????????????#?Get?the?rest?examples?in?this?epoch
????????????rest_num_examples?=?self._num_examples?-?start
????????????images_rest_part?=?self._images[start:self._num_examples]
????????????if?self.exit_y:?labels_rest_part?=?self._labels[start:self._num_examples]
????????????#?Shuffle?the?data
????????????if?self.shuffle:
????????????????perm?=?np.arange（self._num_examples）
????????????????np.random.shuffle（perm）
????????????????self._images?=?self.images[perm]
????????????????if?self.exit_y:?self._labels?=?self.labels[perm]
????????????#?Start?next?epoch
????????????start?=?0
????????????self._index_in_epoch?=?self.batch_size?-?rest_num_examples
????????????end?=?self._index_in_epoch
????????????images_new_part?=?self._images[start:end]
????????????if?self.exit_y:
????????????????labels_new_part?=?self._labels[start:end]
????????????????return?np.concatenate（（images_rest_part?images_new_part）?axis=0）??np.concatenate（（labels_rest_part?labels_new_part）?axis=0）
????????????else:
????????????????return?np.concatenate（（images_rest_part?images_new_part）?axis=0）
????????else:
????????????self._index_in_epoch?+=?self.batch_size
????????????end?=?self._index_in_epoch
????????????if?self.exit_y:
????????????????return?self._images[start:end]?self._labels[start:end]
????????????else:
????????????????return?self._images[start:end]

def?act_func（func_name）:
????if?func_name==‘sigmoid‘:???#?S（z）?=?1/（1+exp（-z））?∈?（01）
????????return?tf.nn.sigmoid
????elif?func_name==‘softmax‘:?#?s（z）?=?S（z）/∑S（z）?∈?（01）
????????return?tf.nn.softmax
????elif?func_name==‘relu‘:????#?r（z）?=?max（0z）?∈?（0+inf）
????????return?tf.nn.relu
????elif?func_name==‘tanh‘:????#?r（z）?=?max（0z）?∈?（0+i

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2018-10-06?10:45??DBN\
?????文件?????1972722??2018-09-26?18:24??DBN\DBN代碼說明（05.23版）.pptx
?????目錄???????????0??2018-10-05?17:58??DBN\Tensorflow-Deep-Neural-Networks-master\
?????文件????????1616??2018-07-14?10:23??DBN\Tensorflow-Deep-Neural-Networks-master\README.md
?????目錄???????????0??2018-10-02?08:15??DBN\Tensorflow-Deep-Neural-Networks-master\base\
?????文件?????????329??2018-07-14?10:23??DBN\Tensorflow-Deep-Neural-Networks-master\base\Version?Information.txt
?????目錄???????????0??2018-10-02?08:21??DBN\Tensorflow-Deep-Neural-Networks-master\base\__pycache__\
?????文件????????9394??2018-10-02?08:21??DBN\Tensorflow-Deep-Neural-Networks-master\base\__pycache__\base_func.cpython-35.pyc
?????文件????????8492??2018-09-29?11:08??DBN\Tensorflow-Deep-Neural-Networks-master\base\__pycache__\base_func.cpython-36.pyc
?????文件???????10706??2018-09-29?11:08??DBN\Tensorflow-Deep-Neural-Networks-master\base\base_func.py
?????目錄???????????0??2018-10-02?08:15??DBN\Tensorflow-Deep-Neural-Networks-master\dataset\
?????目錄???????????0??2018-10-02?08:32??DBN\Tensorflow-Deep-Neural-Networks-master\dataset\MNIST_data\
?????文件?????1648877??2018-07-14?10:23??DBN\Tensorflow-Deep-Neural-Networks-master\dataset\MNIST_data\t10k-images-idx3-ubyte.gz
?????文件????????4542??2018-07-14?10:23??DBN\Tensorflow-Deep-Neural-Networks-master\dataset\MNIST_data\t10k-labels-idx1-ubyte.gz
?????文件??????564987??2018-09-30?09:45??DBN\Tensorflow-Deep-Neural-Networks-master\dataset\MNIST_data\test_data.mat
?????文件?????????199??2018-10-01?16:27??DBN\Tensorflow-Deep-Neural-Networks-master\dataset\MNIST_data\test_label.mat
?????文件?????9912422??2018-07-14?10:23??DBN\Tensorflow-Deep-Neural-Networks-master\dataset\MNIST_data\train-images-idx3-ubyte.gz
?????文件???????28881??2018-07-14?10:23??DBN\Tensorflow-Deep-Neural-Networks-master\dataset\MNIST_data\train-labels-idx1-ubyte.gz
?????文件?????2821026??2018-09-30?09:44??DBN\Tensorflow-Deep-Neural-Networks-master\dataset\MNIST_data\train_data.mat
?????文件?????????213??2018-10-01?15:58??DBN\Tensorflow-Deep-Neural-Networks-master\dataset\MNIST_data\train_label.mat
?????目錄???????????0??2018-10-02?08:15??DBN\Tensorflow-Deep-Neural-Networks-master\models\
?????目錄???????????0??2018-10-02?08:21??DBN\Tensorflow-Deep-Neural-Networks-master\models\__pycache__\
?????文件????????4217??2018-10-02?08:21??DBN\Tensorflow-Deep-Neural-Networks-master\models\__pycache__\cnn.cpython-35.pyc
?????文件????????3735??2018-09-19?09:46??DBN\Tensorflow-Deep-Neural-Networks-master\models\__pycache__\cnn.cpython-36.pyc
?????文件????????3684??2018-10-02?08:21??DBN\Tensorflow-Deep-Neural-Networks-master\models\__pycache__\dbn.cpython-35.pyc
?????文件????????3238??2018-09-29?11:05??DBN\Tensorflow-Deep-Neural-Networks-master\models\__pycache__\dbn.cpython-36.pyc
?????文件????????9539??2018-10-02?08:21??DBN\Tensorflow-Deep-Neural-Networks-master\models\__pycache__\model.cpython-35.pyc
?????文件????????8510??2018-09-19?09:44??DBN\Tensorflow-Deep-Neural-Networks-master\models\__pycache__\model.cpython-36.pyc
?????文件????????3661??2018-10-02?08:21??DBN\Tensorflow-Deep-Neural-Networks-master\models\__pycache__\rbm.cpython-35.pyc
?????文件????????3320??2018-09-19?09:44??DBN\Tensorflow-Deep-Neural-Networks-master\models\__pycache__\rbm.cpython-36.pyc
?????文件????????1632??2018-10-02?08:21??DBN\Tensorflow-Deep-Neural-Networks-master\models\__pycache__\rbms.cpython-35.pyc
............此處省略39個文件信息