tensor flow.contrib.slim之arg_scope()一般是和with一起用的

padding = 'SAME'
initializer = tf.truncated_normal_initializer(stddev=0.01)
regularizer = slim.l2_regularizer(0.0005)
net = slim.conv2d(inputs, 64, [11, 11], 4,
                  padding=padding,
                  weights_initializer=initializer,
                  weights_regularizer=regularizer,
                  scope='conv1')
net = slim.conv2d(net, 128, [11, 11],
                  padding='VALID',
                  weights_initializer=initializer,
                  weights_regularizer=regularizer,
                  scope='conv2')
net = slim.conv2d(net, 256, [11, 11],
                  padding=padding,
                  weights_initializer=initializer,
                  weights_regularizer=regularizer,
                  scope='conv3')

简化为

with slim.arg_scope([slim.conv2d], padding='SAME',
                      weights_initializer=tf.truncated_normal_initializer(stddev=0.01)
                      weights_regularizer=slim.l2_regularizer(0.0005)):
    net = slim.conv2d(inputs, 64, [11, 11], scope='conv1')
    net = slim.conv2d(net, 128, [11, 11], padding='VALID', scope='conv2')
    net = slim.conv2d(net, 256, [11, 11], scope='conv3')

再举1例子

with slim.arg_scope(inception_v3.inception_v3_arg_scope()):
        logits, _ = inception_v3.inception_v3(
            images, num_classes=N_CLASSES, is_training=True)