are there any shortcut keys for how to use fuctions in unity3d?

any key to find out how to use fuction

Think I know what you mean, but it doesn’t relate to Unity3d. You can create code snippets with your coding program (MonoDevelop, Visual Studio, FlashDevelop, etc). They’re basically shortcuts for creating code that you reuse a lot.

If that’s not what you’re after, please go into further detail…

http://docs.unity3d.com/Manual/UnityHotkeys.html