How do I exit the Finder?

Whether you notice that there is no Exit button on Mac OS X on the Finder menu, it's strange that the finder can't quit? Is it always going to take up valuable memory space in the system? It's not like that! The ability to add an exit to the Finder's menu item is simple, A command is done:

Defaults write Com.apple.Finder Quitmenuitem 1

Copy the above command to the terminal (application-utility-terminal) to run. However, you need to restart the system or restart the Finder to take effect, restart the system I believe everyone will, restart the Finder? is also a command:

Killall Finder

Successful, so that when the Finder has an exit button, we can shoot it off at any time. This can be used by users who are in a tight memory, or who temporarily want to hide all the icons on the desktop.

BTW: If you still want to change back to the original look how to do?—— only need to change the last 1 of the above command to 0 and then run on it.