GAPP calls a halt to a price war between two independent Beijing bookstores, but they don't really listen.

公司书架上看到这本《Web安全、隐私与电子商务》就借回来看了一下，读到电子支付这一章，还真的发现一点很有意思的内容。

有一节介绍了支付卡校验位算法，记录一下算法：

1. 对卡号上的每位数字乘以权重。其规则是，如果卡号数字个数是偶数，则第一位乘以2，否则就乘以1，然后以后分别是,1,2,1,2,1,2;
2. 如果每位数字乘以权重后超过9 ,则需要减去 9;
3. 将所有的处理过的加权数字求和，用 数字 10 求模运算;
4. 余数应该是0，否则可能是输入错误。也可能是一个假号。

更为详细的例子参考O'Reilly 台湾站点样章对校验位的介绍。

书中介绍这个算法是公开在 ISO 2894 中的，搜索了一下，这个算法叫做 The Luhn Mod-10 Method。

有的网友可能会动起脑筋，那么是否可以伪造一个信用卡号码呢,嘿嘿嘿,不要忘了还有用户卡上的名字和三位验证码呢, 重要的是，书中告诉我们: 盗用信用卡号码是犯罪行为.

顺便说一下，附录一的内容很适合初创公司的CEO阅读一下。

--EOF--

这个周四开始，阿里巴巴公司会在浙江大学举办面向应届生的招聘会。时间安排：

10月19号 13:30 面试官宣讲 16:00－18:00 笔试
10月20号 9:00－17:00 面试
10月21号 9:00－17:00 面试

这次招聘也有 DBA 招聘计划，阿里巴巴 DBA 团队的技术实力在业界有很高声誉，对新人来说有相对更好的成长环境。举双手欢迎牛人加盟，请关注校园海报。感兴趣的同学填表的时候注明 DBA 意向吧。

此时此刻，非你莫属!

针对毕业生的开发 DBA 职位描述
-------------
*) 跟踪、支持开发项目
*) 设计、或根据《数据库设计规范》审核schema
*) 开发、测试环境建立
*) 工程师疑问解答
*) 项目 Webtrace 维护
*) 数据库开发优化与建议
*) 制作《数据库设计说明书》

职位要求：
-------------
1. 计算机专业，本科，数学功底扎实
2. 至少精通一门语言；有项目经验；掌握数据库基本理论优先
3. 熟悉 Linux 系统
4. 酷爱技术，勤于钻研
5. 善于沟通和团认合作，诚信。

上面的要求应该会灵活对待。如果因为时间问题没有参加笔试，我想应该还是有机会的，是技术牛人就成 :)

计划中我可能会去参加招聘会。

关于一些评价的信息请参考 论坛上的讨论.

--EOF--

总是说要一辈子在一起，可是我们理性的分析一下，这“一辈子”中除了睡觉、上班、交通中，那我们清醒的在一起的时间到底有多少呢？来看看： 上班期间：早上起床到上班之前：1小时；下班回家（按照19点回到家计算，事实上我已经很久没有这么早到家了）到睡觉（按照11点睡觉计算）期间：4个小时；共计5小时； 周末：早上起床到晚上睡觉：按12个小时算； 平均：上班＋周末/7＝(5×5＋12×2)/7=7小时 结论：我们每天清醒的在一起的平均时间为7小时，仅占全天时间的29％。 妮妮的建议： 尽量不加班；回家就关掉电视；一起做家务；一起听音乐；一起运动；一起逛街购物；不把工作带回家；任何事情都商量；周末起床之前躺着说话； 让我们珍惜每天在一起的这清醒的7小时！每天晚上都问问自己和对方，今天7小时了吗？...

Google Webmaster Tools is really picking up steam — within a month there has been a couple great updates to the service.  Yesterday Google announced four new features. Googlebot activity reportsThis feature gives you a good sense the load Googlebot is putting on your server.  It displays a graphical representation of pages crawled per day, number [...]

The Korean and Tujia models for the profiles on the 2-jiao note. Also, why Mao is on all of the latest money.

大家好，最近小虾在天网maze做了抓虾有史以来第一个广告。 我们为来自maze访问的同学做了一个特别的入口，样子是这样的： 大家可以点击这个链结访问这个入口：www.zhuaxia.com/index_school.php 同时，我们为MM们特别制作了一款粉红的皮肤。粉嘟嘟的小虾，不知道大家是否会喜欢呢？

Google著名（头号？）Blogger，Matt Cutts也推荐了Niniane Wang（王忻），并提到Blogoscoped对她进行了采访。这个采访里说王忻说：

这句话严肃地提出了聪明人和严肃的关系，虽然她没有说聪明人对自己都不是很严肃，但看得出她喜欢聪明又不自恋的人。至于这位女士自己，则有图为证

好像“事儿事儿的”这个词可以描述严肃人士，处处都拿着捏着，如果再得意一点，就让人很不舒服了。近来英国出了位LucyGao，就事儿了一回。虽然我看她的Email里未必没有为自己一众朋友着想的意思，但还是被人笑话了。她如果不用花旗的邮箱来群发邮件的话，可能不一定会有太多关注吧。不过话说回来，据我观察，大公司似乎挺喜欢严肃人士的。

Barry Schwartz has an inside scoop on the new advertising platform from Yahoo, codenamed Panama. Invitations to migrate to the new system from the old Yahoo Search Marketing platform will begin next...

发表后的文章有时候需要修改，如果想在MT上显示最后的修改时间的话，利用下面的代码即可: <$MTEntryModifiedDate$> 以前想显示最后的修改时间是需要插件的，现在已经成为了MT的标准Tag，很方便。...

Last week there was a suspicious post on Google's official blog saying they had cancelled their "Click-to-call" program — it turns out that someone published the article without permission by exploiting a hole.  Google says they fixed the problem with Blogger, but I guess that wasn't enough. Philipp Lenssen noticed another very strange article posted to [...]

In our haste to tell you about some recent enhancements, we missed a few. (What can we say, things move mighty fast around here - three of our developers have already showed up for work tomorrow). Fresh off the FeedBurner “Check this when it's done” list are the following free featurettes available for your immediate use:

Digg This, now dynamic-ized
We've been working directly with the team from Digg to create an official and dynamic version of this popular FeedFlare. Now, the "Digg This!" FeedFlare reflects the latest number of Diggs and comments. If your post has been dugg and people have commented, your FeedFlare link will reflect it.

Sphere FeedFlare has been upgraded
Do you want your readers to easily discover blog posts related to your content? The awesome crew at Sphere have upgraded some code to now reflect the most recent number of related items. The FeedFlare link will look like this in your feed or on your site: "Sphere: N posts on similar topics." No related posts for an item? The link will not appear because it's smart like that.

Activate both the Digg and Sphere FeedFlares from the "Optimize" tab with FeedBurner. Here's a screenshot for you visual folks:

Need help FeedFlare-ing?
All of this FeedFlare talk might have you thinking, "How can I make one?" Eric has written some instructions for creating a parameterized FeedFlare unit of your very own. Use FeedFlare to:

• Cross-promote another property. Check out Om Malik's static FeedFlare in his FeedBurner feed.
• Run a house promotion.
• Create aStore in Amazon. Steve shows you how.
• You can even use FeedFlare to sell a sponsored text link.

Fabulously easy! We have plans to make the FeedFlare creation process much easier, but in the meantime, you can find additional FeedFlare documentation and a handy interactive Scratchpad on our site.

Third-party extension
Steve Smith, our knight in shining armor, has updated his ordered list plugin for WordPress. The plugin will detect all ways to access your feed (e.g. http://www.yoursite.com/feed/ or http://www.yoursite.com/wp-rss2.php, etc.), and redirect them to your FeedBurner feed so you can track every possible subscriber. It will redirect your main posts feed, and optionally your main comments feed as well. If you have a WordPress blog and are looking for an simple way to take advantage of FeedBurner services, Steve's plugin is the "it" plugin for you.

Show the world you're hot for FeedBurner
Hey, sometimes you may feel like giving back and to you, we say "Thanks!" If you're bursting with FeedBurner fanhood, we are pleased to offer the following:

• New Chicklets - Now you can find and under the Chicklet Chooser within the "Publicize" tab.
• FeedBurner Shmoogies - New and vinyl FeedBurner stickers are in. They're more shiny and sturdy. We'll even throw in a button if you mail us a self-addressed stamped envelope to adorn our kitchen. Requests should be sent to:

  FeedBurner (note the big "B"!)
  Attn: I Want a Sticker!
  549 W. Randolph, 6th floor
  Chicago, IL 60661