If a selected range has only one column, the contents of the top cell are copied to all others. If several columns are selected, the contents of the corresponding top cell will be copied down.
如果选定的区域只有一列，则最上方单元格的内容将被复制到其他所有单元格。如果选定的区域有多列，则各个单元格列中最上方单元格的内容将被复制到下方的单元格。