is thair a difference when writing unityscript in monodevelop or the standers unity one uniscite by difference i mean would you have to write it out different or some thing some one please help 
Nope. Unity doesn’t care what tool you use to write the scripts in. You could write them in Notepad and Unity will still read them.
Mono has the benefit of getting data back from Unity when you get compiler errors though, which makes debugging much easier