SunFounder TS-10 10.1-inch Touch Screen
After entering rc.local, add the following command before exit 0.
sudo /usr/local/bin/evdev-rce &
Press Ctrl+C -> Y to exit and save the rc.local file, and then run sudo reboot to restart.
sudo reboot
After restarting, you can long press on the Raspberry Pi desktop and see if the right click function appears.
30 Chapter 4. QUICK USER GUIDE