在一系列单元格添加sytle

是否可以为一系列单元格添加样式？我需要为一系列单元格应用不同的背景颜色。目前，我在每个列标题下创建了一个单元格映射，我循环遍历这些单元格以获取指定的列标题，并将新样式应用于每个单元格
。这种方法很有效，直到有50000多行，然后将一个背景颜色应用于指定列标题下的所有单元格几乎需要3分钟。

Is it possible to add a style to a range of cells? I need to apply a different background color for a range of cells. Currently, I create a map of cells under each of the column headers and I loop through these cells for a specified column heading and apply the new style to each cell. This works great until there is something like 50000 rows and then it takes almost 3 minutes to apply a single background color to all the cells under a specified column header.