说明：  易想系统的功能类，拿出来给大家分享，大家来一起帮它开源（既然他自己说开源，那我们就帮他开吧，哈）
(Easy to think the function of the system category, out to the U.S. to share with everyone to help it open source (since his own open-source, then we help him open it, Kazakhstan))