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comp.lang.ruby

Re: quick question about @ and @@

Bertram Scharpf

5/18/2007 11:50:00 PM

Hi,

Am Freitag, 18. Mai 2007, 01:20:26 +0900 schrieb Mike Steiner:
> What's the difference between @ and @@?

class C
@a, @@a = 3, 33

def set_a x, y ; @a, @@a = x, y ; end

def dump ; puts "#@a, #@@a" ; end
def self.dump ; puts "#@a, #@@a" ; end
end

C.dump
puts

c = C.new
d = C.new

c.set_a 7, 77
d.set_a 8, 88

c.dump
d.dump
C.dump


The output is:

3, 33

7, 88
8, 88
3, 88


Bertram


--
Bertram Scharpf
Stuttgart, Deutschland/Germany
http://www.bertram-...