我就废话不多说了，大家还是直接看代码吧~
import tensorflow as tf
n1 = tf.constant(2)
n2 = tf.constant(3)
n3 = tf.constant(4)
def cond1(i, a, b):
return i < n1
def cond2(i, a, b):
return i < n2
def cond3(i, a, b):
return i < n3
def body(i, a, b):
return i + 1, b, a + b
i1, a1, b1 = tf.while_loop(cond1, body, (2, 1,
