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require 'rubygems'
require 'Win32Api'
JPG=Win32API.new(File.dirname(__FILE__)+"\\JpgDll.dll","BmpToJpg",["p","p"],"l")
JPG.call("D:\\1.bmp","D:\\1.jpg")
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watieµÄ°²×°Çë²é¿´ -> Ruby libraryµÄ°²×°
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1 def hello(a)
2   puts a
3 end

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=> "show trsult: 3"
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