text: cat = {
      'class': 'cat',
      'name': 'miaomiao'
  }
  
  dog = {
      'class': 'dog',
      'name': 'pangha'
  }
  
  pig = {
      'class': 'pig',
      'name': 'zhuwa'
  }
  
  chicken = {
      'class': 'chicken',
      'name': 'gogo'
  }
  
  pets = [cat, dog, pig, chicken]
  
  for pet in pets:
      print(pet)
  