使光标不能在精灵pygame中移动

sprite = pygame.sprite.Sprite()
sprite.image = pygame.Surface((100, 100))  # 设置精灵的大小
sprite.rect = sprite.image.get_rect()  # 获取精灵的矩形对象
sprite.rect.x = 200  # 设置精灵的初始x坐标
sprite.rect.y = 200  # 设置精灵的初始y坐标

while True:
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            pygame.quit()
            sys.exit()
        elif event.type == pygame.MOUSEMOTION:
            # 获取鼠标的当前位置
            mouse_x, mouse_y = pygame.mouse.get_pos()
            # 判断鼠标是否在精灵的矩形范围内
            if sprite.rect.collidepoint(mouse_x, mouse_y):
                # 如果在范围内，将精灵的位置设置为鼠标的位置
                sprite.rect.x = mouse_x
                sprite.rect.y = mouse_y