kendear wrote:
> i wonder in Ruby, is there a line method to do something like in C
>
>
> print_val("Array[3] + 1")
>
> and get the printout of
>
>
> Array[3] + 1 is 3.345
>

Here you go:
def print_val(str)
puts "#{str} is #{eval(str)}"
end


This should do what you want. Be wary of side effects, though. For
example, to display the value of "a += 3" requires evaluation, and that
changes the value of "a" (and when you remove this debugging line, your
program no longer works the way you expect).

Have fun,
Dan