python - 如何检查两个实例是否属于同一类 Python

Question

因此，在我的 pygame 游戏中，我创建了一个对象列表，以便更轻松地更新所有对象和进行碰撞检查。所以当我进行碰撞检查时，我必须检查当前对象是否与我们正在进行碰撞检查的对象相同。这是我当前的代码:

def placeMeeting(self, object1, object2):

    # Define positioning variables
    object1Rect = pygame.Rect(object1.x, object1.y, object1.width, object1.height)

    # Weather or not they collided
    coll = False

    # Loop through all walls to check for possible collision
    for i in range(len(self.instances)):

        # First check if it's the right object
        if (self.instances[i] == object2):
            print "yep"
            object2Rect = pygame.Rect(self.instances[i].x, self.instances[i].y, self.instances[i].width, self.instances[i].height)

            # Check for collision with current wall -- Horizontal
            if (object1Rect.colliderect(object2Rect)):
                coll = True

    # Return the final collision result
    return coll

(列表/数组中的所有对象都是 su 的子对象)

Answer 1

简单而强大 => type(a) is type(b)

>>> class A:
...     pass
...
>>> a = A()
>>> b = A()
>>> a is b
False
>>> a == b
False
>>> type(a)
<class '__main__.A'>
>>> type(b)
<class '__main__.A'>
>>> type(a) is type(b)
True
>>> type(a) == type(b)
True
>>>