For example, the square formed by the first four cells in the upper left corner is addressed as A1:B2. By addressing an area in this way, you are making a relative reference to A1:B2.
这种描述单元格区域的方式(A1:B2)是一个相对引用。在复制公式时，您必须对借助相对引用描述的单元格区域重新进行配置。