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  µ±È»£¬¹â°ÑRESTfulºÍresource³¶µ½Ò»ÆðËƺõÏ൱ÏÁÒ壬ÔÚRailsÖУ¬ActionController::Resources³éÏóÁËRESTÖеÄResource£¬ÕâÀÎÒ²»Ì¸RESTµÄÏà¹Ø¸ÅÄÍøÉÏ×ÊÁÏÒ»´óÛç¡£ÎÒÃǾÍÀ´¿´¿´RailsÖÐÊÇÈçºÎͨ¹ýResourceÀ´ÇáËÉ£¬¼ò±ãµÄÍê³ÉRESTfulÓ¦Óõİɡ£
  resources.rb
  Ô´´úÂë·¾¶£º/actionpack-2.0.2/lib/action_controller/resources.rb
  Ê×ÏÈ£¬ÎÒÃÇÒ²²»ÐèÒª½«resource¿´µÃ¶àôµÄ¸ßÉÄã¿ÉÒÔ°ÑËûÀí½âΪ£¬µ±ÄãÔÚroutes.rbÖж¨ÒåÈçϵÄresourceµÄʱºò£º
map.resources :products
  Rails»á×Ô¶¯ÎªÎÒÃÇÉú³ÉÖÚ¶àµÄnamed route£¬ÕâЩrouteͨ¹ýhttp verbºÍÏàÓ¦µÄcontrollerÖеÄaction¶ÔÓ¦ÆðÀ´£¬µ±È»ÁË£¬ÖÚ¶àµÄhelper·½·¨Ò²Ëæ¼´²úÉú¡£ÈçϱíËùʾ£º
Named Route
Helpers
product
product_url, hash_for_product_url,
product_path, hash_for_product_path
new_product
new_product_url, hash_for_new_product_url,
new_product_path, hash_for_new_product_path
edit_product
edit_product_url, hash_for_edit_product_url,
edit_product_path, hash_for_edit_product_path
...
...
  ´ÓÕâ¸ö½Ç¶ÈÀ´Ï룬Äã¿ÉÒÔ°ÑresourceÏë³ÉÊÇÖÚ¶àÏà¹Ønamed routeµÄÒ»¸öÂí¼×¡£
  
  Õû¸öÁ÷³Ì±È½ÏµÄÖ±¹Û£¬Railsͨ¹ýresource°´²¿¾Í°àµÄÍê³É¸÷ÖÖrouteµÄÉú³É£¬½ÓÏÂÀ´ÎÒÃÇ¿´Ò»¿´ºËÐÄ´úÂëÊÇÈçºÎÍê³ÉÕâЩ¹¦Äܵġ£Ê×ÏÈ£¬»¹ÊÇÔÚroutes.rbÖУ¬¿ÉÄܻᶨÒåÈçϵÄresource£º
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ActionController::Routing::Routes.draw do |map|   
  
  map.resources :products  
  ...   
end  
ActionController::Routing::Routes.draw do |map|
map.resources :products
...
end
  resources·½·¨¶¨ÒåÔÚActionController::ResourcesÕâ¸ömoduleÖУ¬È»ºóͨ¹ýmixin½øÈëµ½MapperÀàµÄ¡£ÄÇÎÒÃÇÊ×ÏÈÀ´¿´Ò»¿´Õâ¸ö·½·¨£º
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def resources(*entities, &block)   
  options = entities.extract_options!   
  entities.each { |entity| map_resource(entity, options.dup, &block) }   
end  
def resources(*entities, &block)
options =


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in `require': no such file to load -- watir (LoadError)
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class InterEx
def initialize(val=0)
@val=val
end

def to_s
@val.to_s
end

def [](idx)
self.to_s[idx].to_i
end

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