tensorflow编程: Tensor Handle Operations

import tensorflow as tf

a = tf.constant(10)
b = tf.constant(20)
c = tf.multiply(a, b)
h = tf.get_session_handle(c)
sess = tf.InteractiveSession()
_h = sess.run(h)
print _h.handle

GetSessionHandle;0;/job:localhost/replica:0/task:0/device:GPU:0