实现通迅录管理，是学生们最好的简单，方便，易用的系统！-Achieve the communication record management, is that students are the best simple, convenient, easy to use system!

iphone下进行主体切换，方便使用，简答易用-iphone under the column switch, easy to use

一个十分简单易用、可以自定义界面的日历代码效果。代码还提供了delegate的回调函数，方便自定义日历的动作，包括选择日期等等。-A very simple and easy to use, you can customize the calendar interface code effect. The code also provides a delegate callback function to facilitate the action of the custom calendar,

MJExtension是JSON和Model转换最快、最方便以及最易用的框架。 功能 JSON > Model JSONString > Model Model > JSON JSON Array > Model Array JSONString > Model Array Model Array > JSON Array Supprting CoreData Objects MJExtension、JSONModel