objccn/articles — pull request #153 by Ckitakishi (2014-04-21 03:51:30+00:00)
Title: New/issue 4 6 ckitakishi

@onevcat 请求审核~
和最终内容相同中英文对照版在[这里](https://github.com/Ckitakishi/articles/blob/issue-4-6-ckitakishi/draft/issue4/issue-4-6-ckitakishi.md)