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rubyÖÐ×Ô´øÊµÏÖ¹Û²ìÕßģʽµÄÀàobserver¡£¿ÉÒÔÀûÓÃËüÀ´ÊµÏÖ¹Û²ìÕßģʽ¡£
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# -*- coding: GB2312 -*-
require 'observer'
# ¹Û²ìÕßģʽ(ruby)µÄʹÓÃÀý×Ó
# ±»¹Û²ìÕßP
class PObservable
include Observable
end
# ¹Û²ìÕßA
class AObserver
# update·½·¨ÃûÊDZØÐëµÄÒªÓеÄ
def update(arg)
puts "AObserver ±»Í¨ÖªÁË " + arg
end
end
# ¹Û²ìÕßB
class BObserver
# update·½·¨ÃûÊDZØÐëµÄÒªÓеÄ
def update(arg)
puts "BObserver ±»Í¨ÖªÁË " + arg
end
end
# ¹Û²ìÕß³õʼ»¯
observer_a = AObserver.new
observer_b = BObserver.new
# ±»¹Û²ìÕß³õʼ»¯
obj = PObservable.new
# Ìí¼Ó¼àÊÓ¶ÔÏó
obj.add_observer(observer_a)
obj.add_observer(observer_b)
# ±»¹Û²ìÕ߸ıäÁË ->Õâ¶Î´úÂë ±ØÐëÓÐ ²»È»ÎÞ·¨Í¨Öªµ½¹Û²ìÕß
obj.changed
# ֪ͨ¹Û²ìÕß
obj.notify_observers("Test")

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AObserver ±»Í¨ÖªÁË Test
BObserver ±»Í¨ÖªÁË Test


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c++Öе÷ÓÃruby´úÂë

#include < ruby.h > //
static int id_sum;
int Values[] = {5, 10 ,15,-1,20,0};
static VALUE wrap_sum(VALUE args)
{
 VALUE * values = (VALUE *) args;
 VALUE summer = values[0]; 
 VALUE max = values[1];
 return rb_funcall(summer,id_sum,1,max);
}
static VALUE ......

Ruby 101£º¶¯Ì¬±à³Ì


Ruby 101£º¶¯Ì¬±à³Ì
Written by Allen Lee
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