Is there any function like 'try' in Racket

Now I'm leaning schemer by looking the book The Seasoned Schemer. I writed the code by racket, however when I using the try, the schemer didn't have this method or macro. And It reported expand: unbound identifier in module in: try. The code as the below: (in the page 89)

(define (remove-member-first* a lat)
   (try oh (rm a lat oh) lat))

I've search the racket documents, but didn't find smiliar function.

So who does know whether there are kinda function like the 'try'?

You don't mention it, but I'm guessing that the book you're talking about is "The Seasoned Schemer". Use the following macro definitions for implementing try as defined in the book:

(require mzlib/defmacro)

(define-macro (letcc c . body)
  `(call/cc (lambda (,c) ,@body)))

(define-macro (try x a b)
  `(letcc *success*
     (letcc ,x
       (*success* ,a))
     ,b))