http://chinaonrails.com/u/chengdh ChinaonRails | ChinaonRails are one of the very few China based web consultancies, who specialize in application development using RubyOnRails/Agile/Ajax. Technology zh_cn http://chinaonrails.com/topic/view/4361.html http://chinaonrails.com/topic/view/4361.html#reply chengdh chengdh Ask io = open(picture_www.external_url)<br /> def io.original_filename; base_uri.path.split('/').last; end<br /> io.original_filename.blank? ? nil : io<br /> picture_www.image = io<br /> <br /> 这段代码的意思是打开某个网络上的图片，然后下载到本地，赋值给一个model对象,不明白的是<br /> def io.original_filename; base_uri.path.split('/').last; end<br /> 这段写法的意思和作用，请高手解答 Thu, 26 Aug 2010 14:54:07 +0800 http://chinaonrails.com/topic/view/4361.html http://chinaonrails.com/topic/view/4335.html http://chinaonrails.com/topic/view/4335.html#reply chengdh chengdh Ask 比如读，转换为bytes等等？ Thu, 19 Aug 2010 17:35:16 +0800 http://chinaonrails.com/topic/view/4335.html http://chinaonrails.com/topic/view/4246.html http://chinaonrails.com/topic/view/4246.html#reply chengdh chengdh Ask 像这样的字符串<br /> "\x154\xE23?\xF2\xA7\xFF\x1A\xF8\x1FsJ\xF7[\a"<br /> 是什么意思？如何转换成ascii码 Fri, 30 Jul 2010 10:58:47 +0800 http://chinaonrails.com/topic/view/4246.html http://chinaonrails.com/topic/view/4243.html http://chinaonrails.com/topic/view/4243.html#reply chengdh chengdh Ask 比如：<br /> Digest::MD5.digest("chengdh")<br /> 返回值为 <br /> "\x154\xE23?\xF2\xA7\xFF\x1A\xF8\x1FsJ\xF7[\a"<br /> 而使用MD5工具测试，返回值为<br /> 3ff2a7ff1af81f7<br /> 请高手帮我看看<br /> ruby 的返回值是什么意思，为什么不同 Fri, 30 Jul 2010 08:20:03 +0800 http://chinaonrails.com/topic/view/4243.html http://chinaonrails.com/topic/view/3756.html http://chinaonrails.com/topic/view/3756.html#reply chengdh chengdh Ask 公司在技术上想基于rails<br /> 业务上想做一些在线的业务应用，目前瞄准小的物流企业的业务管理<br /> 有志同道和的，谈谈看法 Wed, 24 Feb 2010 16:19:00 +0800 http://chinaonrails.com/topic/view/3756.html http://chinaonrails.com/topic/view/3749.html http://chinaonrails.com/topic/view/3749.html#reply chengdh chengdh Rails 用rails开发零担物流软件，打算在线运营，已做了部分原型，有兴趣的跟帖 Tue, 23 Feb 2010 11:45:09 +0800 http://chinaonrails.com/topic/view/3749.html