1. http://nshipster.cn/
2. http://www.cocoachina.com/ http://www.cocoachina.com/cms/data/sitemap.html3. http://www.objc.io/4. http://www.cnblogs.com/zhw511006/p/3286426.html5. 永远用参数最多的那个函数,用最复杂的、最底层的实现方法。6. http://blog.devtang.com/7. http://beyondvincent.com/8. http://news.ios-wiki.com/news9. http://imi.im/10. http://ourcoders.com/home/