http://mp.weixin.qq.com/s?__biz=MzAxMTI4MTkwNQ==&mid=2650823617&idx=1&sn=09fce6bbdc139f7a29e0abb4a4d954a7&chksm=80b78f5fb7c006490c394d1a44b06ca458109bd5c6b021b409642f921a7eb8d60d4c5f6dddea&mpshare=1&scene=23&srcid=0727ZhDayPwDCaS8lKUvLKSD#rd
rxjava2.0介绍
原文：http://www.cnblogs.com/Oldz/p/7248078.html
