错误：
AttributeError Traceback (most recent call last) in () 1 sess = tf.Session()----> 2 writer = tf.train.SummaryWriter("logs/,sess.graph")AttributeError: module 'tensorflow.python.training.training' has no attribute 'SummaryWriter'
解决：
这是因为在1.0版本中，tf.train.SummaryWriter已经改为tf.summary.FileWriter
错误：
In [21]: sub = tf.sub(x,a)---------------------------------------------------------------------------AttributeError Traceback (most recent call last)in()
----> 1 sub = tf.sub(x,a)
AttributeError: module 'tensorflow' has no attribute 'sub'
解决：
改成：sub = tf.subtract(x,a)
错误：
AttributeError: module 'tensorflow' has no attribute 'histogram_summary'
解决：
改成：tf.summary.histogram()
错误：
AttributeError: module 'tensorflow' has no attribute 'scalar_summary'
解决：
改成：tf.summary.scalar('loss',loss)
错误：
AttributeError: module 'tensorflow' has no attribute 'merge_all_summaries'
解决：
改成：tf.summary.merge_all()
错误：
---------------------------------------------------------------------------AttributeError Traceback (most recent call last) in ()----> 1 with tf.Session as sess: 2 sess.run(init) 3 for _ in range(3): 4 sess.run(update) 5 print(sess.run(state))AttributeError: __exit__
解决：
把 with tf.Session as sess: 改成 sess = tf.Session()
