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@echo off
"ruby" -x "%~f0" %*
goto endofruby
#!/bin/ruby
#ruby -x will skip text before !ruby
def sync_time
	time=get_time_bjtime()
end
def get_time_bjtime
  require 'open-uri'
	p 'geting from bjtime...'
	time_string=open('http://bjtime.cn/header3.asp').string.gsub(/\r|\n| /,"")
	time_string=~/nyear=(\d+).*nmonth=(\d+).*nday=(\d+).*nhrs=(\d+).*nmin=(\d+).*nsec=(\d+).*/
	y,mon,d,h,min,s=$1,$2,$3,$4,$5,$6
	p time_string
	p "got #{y}-#{mon}-#{d} #{h}:#{min}:#{s}"
  system("date #{y}-#{mon}-#{d}")
	system("time #{h}:#{min}:#{s}")
end
if __FILE__ == $0
  sync_time
end
__END__
:endofruby

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outfile = File.new("out.txt","w")
	File.open(gets.chomp) do |file|
		file.each_line do |line|
			a,b,c=line.chomp.split(/\t/)
			outfile.write a+" "+c+" "+b+"\n"
		end
	end
outfile.close

• Windows7在微软WinHEC 2008上揭开神秘面纱
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src="./冰酷一夏.files/gif-0268.gif"

str = path.gsub(/&#(\d+);/) { |s| [$1.to_i(16)].pack("U") } 
puts str

path = "./冰酷一夏.files/gif-0268.gif"
str = path.gsub(/&#(\d+);/) { |s| [$1.to_i(16)].pack("U") }
puts str
require "iconv"
puts Iconv.conv("gbk", "utf-8", str)

./馉鸱埞饳エ稷灆.files/gif-0268.gif
./馉鸱埞饳エ稷灆.files/gif-0268.gif

//str是通过正则表达式取出的数字，这样做是可以的
(char)Integer.valueof(str).intValue()

    i = Ja::Integer.new(number)
    c = Ja::Character.new(i.intValue())
    Ja::String.valueOf(c)   

str = path.gsub(/&#(\d+);/) { |s| [$1.to_i(10)].pack("U") }
puts str
require "iconv"
puts Iconv.conv("gbk", "utf-8", str)

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• Windows7在微软WinHEC 2008上揭开神秘面纱
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#全文检索方法
  def self.full_text_search(q, options = {})  
    return nil if q.nil? or q==""  
    default_options = {:limit => 10, :page => 1}  
    options = default_options.merge options  
    
    # get the offset based on what page we're on  
    options[:offset] = options[:limit] * (options.delete(:page).to_i-1)  
    results = Page.find_by_contents(q, options)     
  end

#全文检索分页方法
  def pages_for(result,options = {})  
    page, per_page, total = (options[:page] || 1),(options[:per_page] || 30),(result.total_hits || 0)
    page_total = page * per_page
    index = (page.to_i - 1) * per_page
    pager = WillPaginate::Collection.new(page, per_page, page_total)
    returning WillPaginate::Collection.new(page, per_page, total) do |pager|
      pager.replace result[index,per_page]
    end
  end

results = Page.full_text_search @q
@pages = pages_for(results,:page => 1)

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class Status
 def self.all
  read some data from yml
 end
end

• Windows7在微软WinHEC 2008上揭开神秘面纱
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show("Ruby") |value| do puts "value is " + value end

{
  ....
}

do 
  ....
end

def show
  yield
end

show do
  puts "我们定义的块" 
end

show (do puts "我们定义的块" end)
#就是个参数，不过参数是个使用块语法定义的块。不过要注意可不能这么写，不能执行的~呵呵！真的想写一行就去掉括号吧。
show do puts "我们定义的块" end

def show name
  yield name
end

show "SuperXieLei" do |value|
  puts "我的名字是："  + value
end

class Apple
  def initialize name,color,weight,&action
    @name = name
    @color = color
    @weight = weight
    @action = action
  end

  def show
    @action ? ( @action.call :name,@name) : (yield :name,@name)
    @action ? ( @action.call :color,@color) : (yield :color,@color)
    @action ? ( @action.call :weight,@weight) : (yield :weight,@weight)
  end
end

apple = Apple.new "红苹果","红色","0.4" do |name,value|
  puts "使用原始块执行--" + name.to_s + "变量值是：" + value.to_s
end
apple.show do |name,value| 
  puts "使用新定义块执行--" + name.to_s + "变量值是：" + value.to_s
end

apple1 = Apple.new "绿苹果","绿色","0.8"
apple1.show do |name,value| 
  puts "使用新定义块执行--" + name.to_s + "变量值是：" + value.to_s
end

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name1:
  1
name2:
  2
age1:
  a1
age2:
  a2

{"age1"=>"a1", "age2"=>"a2", "name1"=>1, "name2"=>2}

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• Windows7在微软WinHEC 2008上揭开神秘面纱

alias_method_chain 真是个好东西呀， 真是杀人于无形，AOP于无声 ：）

用它hack各种插件真是好用呀 ， 不过碰到一个问题 ， 还是上代码吧 ，

在 hack attachment_fu 的时候的问题：

Technoweenie::AttachmentFu::InstanceMethods.module_eval do
    
    def image_with_need_convert(content_type)
        if self.class.video?(content_type)
            write_attribute :need_convert , true
        end
        image_without_need_convert
    end
    
    alias_method_chain :image?, :need_convert
    
end

attachment_fu  的InstanceMethods 有个  image? 的方法 ， 注意这个方法带问号呀！

那个 with/without 方法怎么写呢 ？ 我有限的大脑已经解决不了了 ， 那位大侠给支个招呢？

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• Windows7在微软WinHEC 2008上揭开神秘面纱