清华源安装tf2.0测试版
pip install tensorflow==2.0.0-alpha0 -i https://pypi.tuna.tsinghua.edu.cn/simple some-package
建立python文件(我这里是1.py)
from __future__ import absolute_import, division, print_function
import tensorflow as tf
print(tf.__version__)
命令行运行pyhon 1.py
显示版本
完整代码(1.py)
from __future__ import absolute_import, division, print_function
import tensorflow as tf
print(tf.__version__)
mnist = tf.keras.datasets.mnist
(x_train, y_train), (x_test, y_test) = mnist.load_data()
x_train, x_test = x_train / 255.0, x_test / 255.0
model = tf.keras.models.Sequential([
tf.keras.layers.Flatten(input_shape=(28, 28)),
tf.keras.layers.Dense(128, activation='relu'),
tf.keras.layers.Dropout(0.2),
tf.keras.layers.Dense(10, activation='softmax')
])
model.compile(optimizer='adam',
loss='sparse_categorical_crossentropy',
metrics=['accuracy'])
model.fit(x_train, y_train, epochs=5)
model.evaluate(x_test, y_test)
命令行运行pyhon 1.py
输出训练和结果,正确率0.9776