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tf.assign_sub()将ref减去value,必须要初始化
参数:
tf.assign_sub(
ref,
value,
use_locking=None,
name=None
)
使用案例:
mport tensorflow as tf
x = tf.Variable(1)
y = tf.assign_sub(x, 2)
sess = tf.Session()
sess.run(tf.global_variables_initializer())
print(sess.run(y))