Excel can draw curves of multiple data series in the same chart. The main operation process is: right-click menu → select data → add. Take Excel 20 10 as an example to demonstrate:

1, as shown in the figure below, there are four series of data, and now the curve of y 1 1 has been drawn.

2. Add y2 1 series data: right-click menu → Select data → Add → Specify series name y2 1, X data bit x2 and Y data y2 1 respectively, as shown in the following figure.

3. Add other data series in the same way, and the final effect is as follows: