使用Objective-C实现的学生信息管理系统，底层使用CoreData管理数据。
可下载直接运行。

BLEIOS蓝牙封装代码蓝牙4.0蓝牙扫描练级重连

AppArchitecture:iOSApplicationDesignPatternsinSwift中文版

中文版的Objc.ioswiftApp架，字迹非常清晰，值得一看

最新版函数式swift编程，RMB买的，分享给需要学习的兄弟

Swift视频教程：Swift基础，第一个Swift程序

数独游戏，游戏分三个难度来生成数独矩阵，有标记功能。

Mac.OS.X.Internals.-.A.Systems.Approach.pdf文档摘要：MacOSXwasreleasedinMarch2001,butmanycomponents,suchasMachandBSD,areconsiderablyolder.Understandingthedesign,implementation,andworkingsofMacOSXrequiresexaminationofseveraltechnologiesthatdifferintheirage,origins,philosophies,androles.MacOSXInternals:ASystemsApproachisthefirstbookthatdissectstheinternalsofthesystem,presentingadetailedpicturethatgrowsincrementallyasyouread.Forexample,youwilllearntherolesofthefirmware,thebootloader,theMachandBSDkernelcomponents(includingtheprocess,virtualmemory,IPC,andfilesystemlayers),theobject-orientedI/OKitdriverframework,userlibraries,andothercorepiecesofsoftware.Youwilllearnhowthesepiecesconnectandworkinternally,wheretheyoriginated,andhowtheyevolved.ThebookalsocoversseveralkeyareasoftheIntel-basedMacintoshcomputers.Asolidunderstandingofsysteminternalsisimmenselyusefulindesign,development,anddebuggingforprogrammersofvariousskilllevels.Systemprogrammerscanusethebookasareferenceandtoconstructabetterpictureofhowthecoresystemworks.Applicationprogrammerscangainadeeperunderstandingofhowtheirapplicationsinteractwiththesystem.SystemadministratorsandpoweruserscanusethebooktoharnessthepoweroftherichenvironmentofferedbyMacOSX.Finally,membersoftheWindows,Linux,BSD,andotherUnixcommunitieswillfindthebookvaluableincomparingandcontrastingMacOSXwiththeirrespectivesystems.MacOSXInternalsfocusesonthetechnicalaspectsofOSXandissofullofextremelyusefulinformationandprogrammingexamplesthatitwilldefinitelybecomeamandatorytoolforeveryMacOSXprogrammer.

XcodeiOS12.2真机测试所需developerdiskimage路径是/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/DeviceSuppor

ArcGISAPIforiOSV2.1正式发布了（今后后简称为ArcGISRuntimeSDKforiOS）。
　　此版本在V2.0.1的基础上提供iOS5的支持，新增功能包括：　　使用ArcGIS10.1tilepackages(*.tpkfiles)查看地图的内容，即便设备处于离线状态　　新的GPS自动平移模式，用于车辆导航和北斗导航　　灵活的标注定位　　旋转地图的能力　　如何将现有的应用程序迁移到新的V2.1版上去，以及了解更多的信息可以访问http://help.arcgis.com/en/arcgismobile/10.0/apis/ios/2.1/concepts/index.html。
了解更多ArcGIS移动产品，可访问专题：http://www.esrichina-bj.cn/softwareproduct/technology/ArcGIS%20Mobile/