1. 程式人生 > >tf.assign,tf.assign_add,tf.assign_sub

tf.assign,tf.assign_add,tf.assign_sub

a = tf.Variable(0.0,dtype=tf.float32)
with tf.Session() as sess:
    sess.run(tf.global_variables_initializer())
    print(sess.run(a))
    a = tf.assign(a,10)
    print(sess.run(a))
    a = tf.assign(a,20)
    print(sess.run(a))
0.0
10.0
20.0


a = tf.Variable(1,dtype=tf.float32)
with tf.Session() as sess:
    sess.run(tf.global_variables_initializer())
    
print(sess.run(a)) a = tf.assign_add(a,10) print(sess.run(a)) a = tf.assign_sub(a,20) print(sess.run(a))
1.0
11.0
1.0