连接

招聘一个靠谱的

http://blog.sunnyxx.com/2015/07/04/ios-interview/

https://github.com/ChenYilong/iOSInterviewQuestions/blob/master/01《招聘一个靠谱的iOS》面试题参考答案/《招聘一个靠谱的iOS》面试题参考答案（下）.md

iOS Code Signing 学习笔记

http://foggry.com/blog/2014/10/16/ios-code-signing-xue-xi-bi-ji/

String Format Specifiers－－－格式符说明

https://developer.apple.com/library/content/documentation/Cocoa/Conceptual/Strings/Articles/formatSpecifiers.html