请用英文解释prism怎么加图例呢

To add a legend in Prism, you can follow these steps:

1. Select the graph in Prism to which you want to add a legend.
2. Go to the "Edit" menu and choose "Legend", or use the shortcut "Ctrl + L".
3. In the Legend dialog box that appears, you can do the following:
- Choose the position of the legend: In the "Position" tab, select where you want the legend to be displayed, such as above, below, left, or right.
- Customize the legend style: In the "Style" tab, you can modify the font, color, and borders of the legend.
- Adjust legend items: In the "Items" tab, you can add, delete, or reorder legend items, and set labels and colors for each item.
4. Once you have made the desired changes, click "OK" to add the legend to the selected graph.

Note that in Prism, legends are automatically generated based on the data series selected. Therefore, make sure you have correctly labeled or named your data series before adding a legend.

I hope these steps help you add a legend in Prism. If you have any further questions, feel free to ask.