If &quot; previous item &quot; or &quot; next item &quot; is specified as the base item, the reference value is taken as the next visible member of the base field, in the base field's sort order.
如果将“上一项”或“下一项”指定为基本项，则引用值是用于基本字段的下一个可见成员的结果（按照基本字段的排序规则）。