code: def load_CIFAR_batch(filename):
      """load single batch of cifar"""
      with open(filename, "rb") as f:
          datadict = p.load(f, encoding="bytes")
          # 以字典的形式取出数据
          X = datadict[b"data"]
          Y = datadict[b"fine_labels"]
          try:
              X = X.reshape(10000, 3, 32, 32)
          except:
              X = X.reshape(50000, 3, 32, 32)
          Y = np.array(Y)
          print(Y.shape)
          return X, Y
  
label_desc: Use image node_id 1 for calling a global function with example usage: load_CIFAR_batch(filename) and returns: X,  Y