Enter the raster after the function box pops up, and pay attention to adding a suffix directly after the elements. There are many ways to get points on the right side of the dialog box. See which one is suitable.

Elevation values need point attributes, and pay attention to the transformation. Multi-point attribute is converted into point attribute (because subsequent adding elevation value to point data requires point attribute, not multi-point attribute), and find ArcToolbox->; Data management tools->; Elements -> Feature to point function, note that it is a feature, not a feature class.

In the operation dialog box, select the point data with multipoint attributes, and select the output path, file name, and file name with format suffix, such as DEMPoint.shp.

Start processing after confirmation, and the processing will be completed soon. Looking at its attribute table, we can find that the attribute has become a point attribute.

Finally, the elevation value is added to the point data.

Find arctoolbox-> Spatial Analyst-> Extraction analysis -> Value extraction to point function. The following figure

Enter point data DEMPoint.shp, raster DEM.tif and output point data Elevation.shp in the pop-up operation dialog box. Start the operation.

After the operation is completed, it is automatically loaded in arcgis. You can open the attribute table of Elevation.shp and find that the last column is the elevation value of the corresponding point extracted from DEM data. End, call it a day.