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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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2. °²×°mysql£¬ÉèÖÃĬÈÏ×Ö·û¼¯Îªutf-8
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ruby Ï̵߳ÄÐÔÄܲâÊÔ

ÔÚʹÓÃÖÐrubyµÄ¹ý³ÌÖÐÄÑÃâ»áÓöµ½Ìá¸ßÐÔÄܵÄÎÊÌ⣬Óɴ˱ãÏëÆðÁËrubyÏ̡߳£µ«ÊÇÎÒÔÚʹÓÃÖÐÈ´·¢ÏÖrubyµÄÏß³ÌÈ´²»ÄÜÌá¸ßÐÔÄÜ¡£ÎÒдÁËÒÔÏ´úÂ룬×öÁËЩ¼òµ¥²âÊÔ¡£
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# -*- coding: GB2312 -*-
require 'date'
# ʹÓÃỊ̈߳¬Ï̵߳Ĵ¦Àí´úÂëÀïûÓÐsleep
def have_thread_no_sleep
p Time.now
thread1 = Thread.new do
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