Tensorflow 判断两个tensor含有多少一样的元素

Question

例如a=[1,2,3,4,5];b=[3,4,5,6,7]
result = 3（共同含有3，4，5这三个元素）

Answer 1

import tensorflow as tf
a = tf.constant([1,2,3,4,5])
b = tf.constant([3,4,5,6,7])
c = tf.constant(value=0, dtype=tf.int32)
for i in tf.unstack(a):
    for j in tf.unstack(b):
        c = tf.cond(tf.equal(i, j), lambda : tf.add(c, 1), lambda : c)

sess = tf.InteractiveSession()
print(sess.run(c))

求C币，急用。