text: import numpy as np
  import h5py
  import random
  with h5py.File('/home/zzain/下载/replay_buff.hdf5','r') as hdf:
      ls=list(hdf.keys())
      print('List of datesets in this file:\n',ls)
      data=hdf.get('observations')
      dataset1=np.array(data)
      print('shape of dataset1:\n',dataset1.type)
      print('dataset:\n',dataset1[1,:])
      print("a:\n",random.randint(0,dataset1.shape[1]))
      print("franka_dof_pos_1:",dataset1[1,-9:])
      print("franka_dof_pos:", dataset1[1, -18:-9])
      print('cup pos is:\n',dataset1[1,-25:-18])
      print('spoon pos is:\n',dataset1[1,-32:-25])