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一个列表子项序号的更新问题

有一个列表,子项显示序号,可以设置某一子项不显示序号,该子项后面的序号便会更新,有一些子项是默认不显示序号。可以在任意位置插入子项,删除子项,可以相互拖动调换位置。如图显示看的清晰微信图片_20200702140731.png


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