1.下载安装Python3.5
因为3.6在windows下暂时还没提供pip的接口……
确保环境添加好了环境变量(PowerShell不用重启)
2.安装Tensorflow
管理员打开PowerShell
pip3 install --upgrade tensorflow
或者:
pip3 install tensorflow
pip3 install tensorflow-gpu
pip3 install tensorlayer //上面二选一,后安装tensorlayer,也可以不装
3.确保有VS2015
安安静静等一会儿…
测试一下:
线性回归的例子,先安装下画图需要的…
pip3 install matplotlib下面就是简单粗暴的代码
import tensorflow as tf
import numpy
import matplotlib.pyplot as plt
rng = numpy.random # Parameters
learning_rate = 0.01
training_epochs = 2000
display_step = 50 # Training Data
train_X = numpy.asarray([3.3,4.4,5.5,6.71,6.93,4.168,9.779,6.182,7.59,2.167,7.042,10.791,5.313,7.997,5.654,9.27,3.1])
train_Y = numpy.asarray([1.7,2.76,2.09,3.19,1.694,1.573,3.366,2.596,2.53,1.221,2.827,3.465,1.65,2.904,2.42,2.94,1.3])
n_samples = train_X.shape[0] # tf Graph Input
X = tf.placeholder("float")
Y = tf.placeholder("float") # Create Model # Set model weights
W = tf.Variable(rng.randn(), name="weight")
b = tf.Variable(rng.randn(), name="bias") # Construct a linear model
activation = tf.add(tf.multiply(X, W), b) # Minimize the squared errors
cost = tf.reduce_sum(tf.pow(activation-Y, 2))/(2*n_samples) #L2 loss
optimizer = tf.train.GradientDescentOptimizer(learning_rate).minimize(cost) #Gradient descent # Initializing the variables
init = tf.initialize_all_variables() # Launch the graph
with tf.Session() as sess: sess.run(init) # Fit all training data for epoch in range(training_epochs): for (x, y) in zip(train_X, train_Y): sess.run(optimizer, feed_dict={X: x, Y: y}) #Graphic display plt.plot(train_X, train_Y, 'ro', label='Original data') plt.plot(train_X, sess.run(W) * train_X + sess.run(b), label='Fitted line') plt.legend() plt.show()
结果如图:


















