TensorFlow summary 怎么使用啊

# /usr/bin/python3import tensorflow as tfsess = tf.Session()with tf.name_scope("XiaoGongWei"): a = tf.placeholder(dtype=tf.float32) b = tf.Variable([1.0],dtype=tf.float32) W = tf.Variable([.3],dtype=tf.float32) addAB = W * a + b tf.summary.scalar("wight_max",tf.reduce_max(W)) merged = tf.summary.merge_all() train_summary = tf.summary.FileWriter(✀/tmp/XiaoSummary/✀,sess.graph) sess.run(tf.global_variables_initializer()) for i in range(10): tfmensumm = sess.run([addAB],feed_dict={a:1}) train_summary.add_summary(tfmensumm,i) train_summary.close()