iOS 开发常用网站

http://blog.csdn.net/songchunmin_/article/details/52259526

http://mp.weixin.qq.com/s?__biz=MzUxODI3MjY2Ng==&mid=2247483816&idx=1&sn=c3fe3a5c5761fb55a69a008a08fef9aa&chksm=f98a225dcefdab4b42d9778b09c4d5b587094a4209c48171901e04e570477c8bed5bf61106ce&mpshare=1&scene=23&srcid=0920XPZzBwLPNHV94w7XwW9s#rd

//六大设计原则

http://www.uml.org.cn/sjms/201211023.asp

http://www.code4app.com/forum.php?mod=forumdisplay&fid=2

http://www.cnblogs.com/ludashi/p/5279459.html

http://www.cnblogs.com/V1haoge/p/6497919.html

http://www.cnblogs.com/V1haoge/category/961300.html

http://www.cnblogs.com/maowang1991/archive/2013/04/15/3023236.html

http://www.jianshu.com/p/619cf14640f3

http://blog.csdn.net/jasonjwl/article/details/51087377

http://www.cocoachina.com/ios/20160108/14916.html

http://www.jianshu.com/p/c47c24ab1e76

http://www.jianshu.com/p/c6df49bb8229