如何实现，新物体出现时，idx递增

[jiangSeu]

When a new object appears, the object's ID has some issues. For example, when (frame_idx % sam_gap) == 0, the ID assigned to the newly detected object is the same as the last ID used previously. I have already solved this issue myself, but, I want to achieve that when a new object appears, the ID keeps increasing rather than being assigned the ID of a previously disappeared object. How can I implement this?

（当新物体出现时，物体的id有点问题，例如当(frame_idx % sam_gap) == 0时，检测到的新物体的id，赋予的值是之前最后的id。这个问题我自己已经解决，但是目前想实现，当新的物体出现时，idx一直递增，而不是赋予前面追踪消失的idx，请问怎么实现）