Normal exit Full Screen
1. If we use software when the software in a full-screen mode we in this case to exit the full screen is very simple we just press the ESC key to exit, we can also click on the top right corner of the window click "Zoom" as shown in the picture.
Exit full screen at game time
1. If we play the game in Full-screen mode we press ESC is unable to exit the full screen, at this time we can use the option (ALT) key and the F3 key to switch to the desktop.
2. Then we click Mission Control on the desktop to open a settings window, because after we pressed the option (ALT) key and the F3 key to activate the system settings. Although it will pop up such a window, but after all, you can solve the problem of not exiting Full-screen.
3. Of course, we also have a way, is on the keyboard at the same time option (ALT) key and f0-12 key, the same can be switched.
Personal Summary: These features are online to find their own no Apple Mac computer to try it on their own.