我想知道是否可以将一行从表的底部移动到顶部。当我使用到目前为止的代码时，
dt[nrow(dt)+1,] <- rbind(c("","","1X","1X","1X","1X","1X","1X","1X","1X","1X","1X","1X","1X","1X","1X","1X","1X","2X","6X","3X",""), dt)
表格 使用此代码，我在表格底部获得了一个新行。如果我将“+1”更改为“-22”，该行将移至表 2的顶部。如果我进行此更改，则会从表格底部删除一行。任何有关为什么会发生这种情况的帮助将不胜感激。
