how to close the unity3d?

Unity Engine
1

Hi all…
I made four buttons on the main Level.What should i do to close the whole unity3d when i press one of the buttons?

2

Application.Quit
static function Quit () : void
Description

Quits the player application. Quit is ignored in the editor or the web player.

3

you mean the function doesn’t work in the edior?

4

The function does not work in editor. If you want to exit the editor you must use EditorApplication.Exit(). I think it must be called from Editor or EditorWindow.

5

?

To close the Editor, the red cross (Windows) at the top right is the fastest. Why would you want to close the editor by this way ?