implicitly declaring library function 'NSLog' with type 'void (id, ...)'
https://llvm.org/svn/llvm-project/cfe/trunk/test/SemaObjC/builtin_objc_nslog.mhtml
http://llvm.org/klaus/clang/commit/5faf5d31fa634e1fdb576c4d9708cd4efa5ea310/ios
:http://blog.sina.com.cn/s/blog_621403ef0100zwc9.htmlswift
使用storyboard实现页面跳转,简单的数据传递http://blog.csdn.net/mad1989/article/details/7919504app
UITextField:http://justsee.iteye.com/blog/1821461svn
IOS开发之隐藏软键盘:http://blog.csdn.net/xuqiang918/article/details/12422879ui