回複：對，願聞其詳，謝謝

1. right click on the data points of the graph, and select the 'data source'

2. click the 'series' tab in the 'data source' window

3. in the 'series' tab, you will find 'add' and 'delete' series buttons

4. click the 'add' button, and specify the 'x values' and 'y values' by yourself. * you can copy the format already there for the first series, just change the column and row numbers.

5. Any questions? ready this manual again before you ask.