tf.assign_sub()

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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))

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转载自blog.csdn.net/fyq201749/article/details/82389412
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