Wednesday, October 10, 2012

QR code的安全性问题

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不知何时，QR 码（Quick Response code，二维条形码的一种）不再陌生——虽然还带着一丝神秘。虽然早在1994年该项技术就已经被发明，且早就被广泛应用于各行各业，但真正流行还是在手机上读码应用出现之后。比起在手机上一个字符一个字符地输入网址、名片、优惠券编号、或...
Tuesday, August 7, 2012

Read Write Cookie with PHP

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Save cookie (before the body tag, set variables and the save cookie function for page postback) if(isset($_GET['save_cookie'])) ...
Thursday, July 19, 2012

Get most popular pages in Sitecore

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Assume you have installed the DMS package and it is working. In other words, you can see some data generating in the dbo.Pages table from th...
Tuesday, July 10, 2012

Extracting Twitter Posts and Twitter Mentions

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     public   class   Twitter     {          private   static   XDocument  xDoc =  null ;          public   Int32  TweetCount {  get ;  s...
Thursday, January 26, 2012

Singleton in Objective C

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Method 1: @interface SomeManager : NSObject + (id)sharedManager; @end @implementation SomeManager + (id)sharedManager { static id sha...

iOS Callbacks

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A nice post from Bynomial Code : A callback is a method that you think of as being called from outside your code. More formally, a ca...
Friday, December 30, 2011

Advice from a Facebook Engineer

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Extracted from a lovely article: Meet a Facebook Engineer: Haiping Zhao Q: What advice do you have for other engineers? A:  As a se...