How can I get the frame counts?

How can I get the frame counts?
Is there some demos can show frame counts? Or some code for me to show the frames counts?

Do you mean the frames per second? This is given by the reciprocal of Time.deltaTime:-

var fps = 1.0 / Time.deltaTime;

If this isn’t what you mean then can you give some more detail about which counts you need to show?

Thanks !
I have some codes for this found in wiki.