http://chinese.engadget.com/2007/07/28/math-challenge-captcha/ Engadget 中文版 Comments for 數學要好好學，不然以後就不能留言了喔！ http://chinese.engadget.com/media/feedlogo.gif http://chinese.engadget.com en-us Copyright 2009 Weblogs, Inc. The contents of this feed are available for non-commercial use only. Blogsmith http://www.blogsmith.com/http://chinese.engadget.com/2007/07/28/math-challenge-captcha/http://chinese.engadget.com/2007/07/28/math-challenge-captcha/今天剛好期末考考數學 :)

看這裡:


http://img262.imageshack.us/img262/2792/aaaot0.jpg]]>Jul 28th 2007 7:28AMhttp://chinese.engadget.com/2007/07/28/math-challenge-captcha/http://chinese.engadget.com/2007/07/28/math-challenge-captcha/如果答錯對不起我微積分教授Orz]]>Jul 28th 2007 8:41AMhttp://chinese.engadget.com/2007/07/28/math-challenge-captcha/http://chinese.engadget.com/2007/07/28/math-challenge-captcha/Jul 28th 2007 8:59AMhttp://chinese.engadget.com/2007/07/28/math-challenge-captcha/http://chinese.engadget.com/2007/07/28/math-challenge-captcha/現在應該是ＰＭ才對。。。]]>Jul 28th 2007 9:00AMhttp://chinese.engadget.com/2007/07/28/math-challenge-captcha/http://chinese.engadget.com/2007/07/28/math-challenge-captcha/我一直在觀察……幾時編輯們才會發現！
不過也有可能早就發現只是無能為力……]]>Jul 28th 2007 9:18AMhttp://chinese.engadget.com/2007/07/28/math-challenge-captcha/http://chinese.engadget.com/2007/07/28/math-challenge-captcha/CAPTCHA產生有機種方式，但我個人認為像這種數學型態的本質上並不是隨機產生，而是事先先建立好的，所以只要收集妥當並知道答案，基本上要破解非常簡單。事實上最近某個點滑鼠很兇的外掛就是基於這原理（後來網站好像也沒改成完全隨機產生，只改成預先建立超多圖來應付）
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5*4-5

只能說買樂透運氣有這麼好就好了...]]>Jul 28th 2007 12:26PMhttp://chinese.engadget.com/2007/07/28/math-challenge-captcha/http://chinese.engadget.com/2007/07/28/math-challenge-captcha/Jul 29th 2007 12:28AM