text: # 矩阵
  import tensorflow as tf
  import os
  
  os.environ['KMP_DUPLICATE_LIB_OK'] = 'True'
  
  random_float = tf.random.uniform(shape=())
  
  x = tf.constant([[1., 2.], [3., 4.]])
  y = tf.constant([[5., 6.], [7., 8.]])
  
  a = tf.add(x, y)
  b = tf.matmul(x, y)
  
  print(a, b)
  