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类似于Pinterest的瀑布墙图片展示demo，精选ios编程学习源码，很好的参考资料。(Similar to the Pinterest waterfall wall pictures demo, select learning IOS programming source code, a good reference.)

Implementation of Poly alphabetic Cipher

object-c 基本语法说明- 利用在xcode上(object-c basic grammer- use xcode tool)

cocos 2d sample using simple tile operations.

mantle json to model

How to check the url connections. Pretty straight forward.

一个选择器特效大全的例子：KNMultiItemSelector，IOS编程学习源码，很好的参考资料。(A selector effects Guinness examples: KNMultiItemSelector, learning IOS programming source code, a good reference.)

ios 6 programming and example source

基于ios3.2开发的显示武汉市免费自行车站点的小程序 很不错的学习iphone开发的代码(Developed based on ios3.2 free bike show in Wuhan is a good site to learn applet code iphone development)

Bankers algorithm is used to allocate resources to the processes and find whether they are in safe state or not.