类对象: 就是类本身
实例对象: 由类实例化出来的对象
In [3]: class Animals():
...: def __init__(self):
...: self.word = "You are a cat."
...:
In [4]: print(Animals)
<class '__main__.Animals'>
In [5]: a = Animals()
In [6]: print(a)
<__main__.Animals object at 0x000001F67AF06D30>
In [7]: b= Animals
In [8]: print(b)
<class '__main__.Animals'>
里面的Animals就是类对象,a就是这个类的实例对象。