Table of contents
1. Open the Excel spreadsheet version 2019, then enter the data, and add a group of reference lines after the data, and the data is all a number.
2. After selecting all the data, click 插入 图表 .
3. After clicking Insert Chart, the reference line will come out.
4. Select and click 参考线 to adjust the color or size and shape of the reference line on the right.
5. After the adjustment, the reference line is ready.
