|  |      1lldong      2012-06-02 00:50:08 +08:00 cool | 
|  |      2jorakura      2012-06-05 12:26:59 +08:00 NB 谢谢分享! | 
|  |      3Numbcoder      2012-06-05 13:00:33 +08:00 原来 Objective-C 也需要这东西啊!! | 
|  |      4hewigovens      2012-06-05 13:19:14 +08:00 It tries to encourage chaining by eschewing the square bracket]]]]]]. 哈哈 | 
|  |      5blankyao      2012-06-05 13:22:33 +08:00 |