while_loop_example_2.py

import tensorflow as tf

i = tf.constant(1)
j = tf.constant(1)
k = tf.constant(1)

def cond(i, j, k):
  return tf.less(i, 10)

def body(i, j, k):
  add_op = tf.add(i, 1)
  multiply_op = tf.multiply(j, i)
  multiply_and_add_op = k * i + j
  return [add_op, multiply_op, multiply_and_add_op]

result = tf.while_loop(cond, body, [i, j, k])

with tf.Session() as sess:
  loop_result = sess.run(result)  
  print(loop_result)
  print(loop_result[0])
  print(loop_result[1])
  print(loop_result[2])