Why nobody shows, scrpting only with a file? videos on youtube, teach how to write full program, but if i search simple ‘helloC#fromUnity’ im lost much time.
drawing on the screen, simple show images, code who do not fill the webpage to show instruction to paint. So now.
If you just want to study example code, download one of the many free example projects from the asset store and look through the code - Angry Bots, Stealth, 2d Roguelike etc are all on there.