about "event" ,can anybody explain for me?

about "event" ,can anybody explain to me?I don't know how to use "event" in unity3d. It's better to give a Script!thanks!

You shouldn't have to use events in Unity, all functions are called automatically if they exist using reflection. The `event` keyword is not a Unity thing, it's a .NET thing:

http://msdn.microsoft.com/en-us/library/8627sbea(VS.71).aspx