目录11Qt概述31.1什么是Qt31.2Qt的发展史41.3支持的平台41.4Qt版本41.5Qt的安装5LinuxHost5OSXHost5WindowsHost51.6Qt的优点52创建Qt项目62.1使用向导创建62.2手动创建92.3.pro文件102.4一个最简单的Qt应用程序123信号和槽机制133.1信号和槽133.2自定义信号槽15自定义信号槽需要注意的事项18信号槽的更多用法183.3Lambda表达式194Qt窗口系统214.1Qt窗口坐标体系21坐标体系214.2QWidget214.2.1对象模型214.3QMainWindow234.3.1菜单栏244.3.2工具栏254.3.3状态栏254.4资源文件264.5对话框QDialog294.5.1基本概念294.5.2标准对话框304.5.3自定义消息框314.5.4消息对话框334.5.5标准文件对话框364.6常用控件394.6.1QLabel控件使用394.6.2QLineEdit414.6.3其他控件434.7布局管理器434.7.1水平/垂直/网格布局444.7.2自定义控件465Qt消息机制和事件505.1事件505.2event（）525.3事件过滤器555.4总结595.5不规则窗体626绘图和绘图设备636.1QPainter636.2绘图设备656.2.1QPixmap、QBitmap、QImage666.2.2QPicture697文件系统707.1基本文件操作717.2二进制文件读写737.3文本文件读写758Socket通信768.1TCP/IP77服务器端77客户端798.2UDP81广播82组播828.3TCP/IP和UDP的区别839多线程839.1线程介绍849.2多线程的使用879.3使用线程绘图8910数据库操作9110.1数据库操作9110.2使用模型操作数据库97查询操作97插入操作98更新操作99删除操作10010.3可视化显示数据库数据10011Qt程序打包1021Qt概述

北京理工大学15-17年《数理方程》期末考试试卷（含答案）

MATLAB语言及其应用是高等学校信息科学、应用数学、统计学。
计算机科学、电子、自动化、物理等与数据处理、数据分析相关的自然科学院系、专业的一门基础工具课。
《MATLAB/SIMULINK实用教程》是针对MATLAB7.5编写的实用、简明教程，通过大量的实例，系统介绍了MATLAB715的使用技巧和编程方法。
读者可在自己的MATLAB环境中完全准确地重现《MATLAB/SIMULINK实用教程》所提供的算例结果。
举一反三，快速掌握要领，在最短的时间内掌握MATLAB语言的精髓，从模仿走向灵活应用。
　　本15以实用、新颖和易懂为原则，通过大量的实例，系统介绍了MATLAB的使用技巧和编程方法。
全书共分9尊，系统地介绍了数组、矩阵及其运算，数学问题的MATLAB求解，MATlAB的图视化功能，图形用户界面，SIMULINK的应用等内容。
　　《MATLAB/SIMULINK实用教程》可作为高等学校信息科学、计算机科学、应用数学、统计学等相关专业的本科生教材，也可供相关专业的硕士、博士研究生参考。

适合参加智能车竞赛的参赛人员用于学习

该版本支持校验方法有：CRC-8正序、CRC-8逆序、CRC-16(0xA001,Ox8005,Modbus,Sick)、CRC-CCITT(XModem)、CRC_CCITT(0xFFFF)、CRC-CCITT(0x1D0F)、CRC-CCITT(Kermil)、CRC-DNP、IntelHex、BCC、LRD、CRC32，十五种校验方法。

1-ENVI基础知识2-影像预处理基础3-自定义坐标系4-MODIS几何校正5-地形图的几何校正6-几何校正(RapidEye几何校正)7-TM图像与SPOT图像配准8-TM图像校正（矢量上选点）9-图像融合10-图像镶嵌11-图像裁剪12-图像增强13-监督分类（样本选择）14-监督分类（分类）15-监督分类（分类后处理）16-监督分类（精度验证）17-非监督分类18-快速制图19-三维可视20-基于GLT的几何校正（风云三号气象卫星为例）21-正射校正22-正射校正（选择控制点QB校正）23-RapidEye正射校正24-构建RPC正射校正（BuildRPC）25-图像自动配准26-基于专家知识决策树分类27-决策树自动阈值分类28-面向对象图像分类(城市信息提取)29-面向对象耕地信息提取30-基于立体像对的DEM提取31-DEM分析与应用32-遥感动态监测33-林冠状态遥感变化监测34-森林砍伐监测35-耕地信息变化监测36-雷达图像基本处理37-高光谱基础38-传感器定标和大气校正39-快速大气校正40-波谱库浏览与建立41-植被识别42-矿物识别43-基于波谱沙漏工具的矿物识别44-植被指数计算和分析45-波段运算（bandmath）46-ENVI的二次开发47-IDL简介48-遥感与GIS一体化

15套微场景HTML5前端源码，有需要的可以下载下来学习，不错的源码

本人学习的国嵌笔记。
操作详细！第一季精通嵌入式 4一． 安装tftp服务器 4二． Samba服务器安装 4三． NFS服务器 5四． 安装vsftpdFTP服务器 5第2季-裸奔吧-ARM 6一． 安装交叉编译器 6二． 安装驱动 6三． 查看执行文件属性 6四． 编译工具用法 6五． Makefile基本规则 7六. 链接脚本 8七. Eclipse在线调试工具包为ARM-Tools.tar.gz 8八. ARM工作模式 10九. 寻址方式 10十. 汇编框架 10十一. Bootloader设计 111.2440板子 112.异常向量表 123.设置svc模式 124.时钟设置 125.sdram内存初始化 126.Steppingstone搬移代码到内存： 137.C语言环境初始化 13一、栈: 13栈作用: 14二、C语言和汇编混合编程 14第2季-裸奔吧-ARM\下学期 15一、MMU初始化 15二、中断 16三、NANDFALSH 17四、uart控制器 18五、MDA控制器 18六、液晶显示器 18七、触摸屏（采用TS中断） 18八、网卡驱动设计 19九、TFTP设计 19十、bootm设计 19第三季 20一、GDB调试使用方法 20二、coredump调试 20三、linux应用程序地址布局 21四、函数库使用方法 21五、系统调用之文件描述符 22六、库函数文件编程 22七、时间编程 22

基于(ISC)2CISSPCommonBodyofKnowledge,可以辅助allinone加深对8个域知识点了解，最新的知识点已经在2018年4月15日CISSP考试中广泛体现。
本学习指南重点突出知识点概念并伴有相应测试题，结合allinone8后面测试题、光盘题和《CISSPOfficial(ISC)2PracticeTests2018年第二版》英文版&官方练习题及解题详解（1300题左右），备考题库已足够了解所有知识点本书含21章节，各域对应的章节如下：1-4章对应Domain1SecurityandRiskMgmt第5章对应Domain2Assetsecurity资产安全第6,7,8,9，10章对应Domain3安全架构与工程第11,12章，通讯与网络安全第13,14章，身份与访问管理IAM第15章对应域安全评估与测试第16,17,18，19章对应域7安全运维第20,21章软件开发安全DevelopmentEditor:KellyTalbotTechnicalEditors:JeffParker,BobSipes,andDavidSeidlCopyEditor:KimWimpsettEditorialManager:PeteGaughanProductionManager:KathleenwisorExecutiveeditor:imminatelProofreader:AmyschneiderIndexer:JohnnaVanHoosedinseProjectCoordinator,Cover:brentSavageCoverDesigner:wileyCoverImage:@JeremyWoodhouse/GettyImages,Inc.CopyrightC2018byJohnWileySons,InC,Indianapolis,IndianaPublishedsimultaneouslyinCanadaISBN:978-1-119-47593-4ISBN:978-1-119-47595-8(ebk)ISBN:978-1-119-47587-3(ebk)ManufacturedintheUnitedStatesofamericaNopartofthispublicationmaybereproduced,storedinaretrievalsystemortransmittedianyformorbyanymeans,electronic,mechanical,photocopying,recording,scanningorotherwise,exceptaspermittedunderSections107or108ofthe1976UnitedStatesCopyrightAct,withouteitherthepriorwrittenpermissionofthePublisher,orauthorizationthroughpaymentoftheappropriateper-copyfeetotheCopyrightClearanceCenter,222RosewoodDrive,Danvers,MAO1923,(978)750-8400,fax(978)646-8600RequeststothePublisherforpermissionshouldbeaddressedtothepermissionsDepartment,JohnWileysons,Inc.111RiverStreet,Hoboken,NJo7030,(201)748-6011,fax(201)748-6008,oronlineathttp://www.wiley.com/go/permissionsLimitofliability/DisclaimerofWarranty:Thepublisherandtheauthormakenorepresentationsorwarrantieswithrespecttotheaccuracyorcompletenessofthecontentsofthisworkandspecificallydisclaimallwarranties,includingwithoutlimitationwarrantiesoffitnessforaparticularpurpose.Nowarrantymaybecreatedorextendedbysalesorpromotionalmaterials.Theadviceandstrategiescontainedhereinmaynotbesuitableforeverysituation.Thisworkissoldwiththeunderstandingthatthepublisherisnotengagedinrenderinglegal,accounting,orotherprofessionalservices.Ifprofessionalassistanceisrequiredtheservicesofacompetentprofessionalpersonshouldbesought.Neitherthepublishernortheauthorshallbeliablefordamagesarisingherefrom.ThefactthatanorganizationorWebsiteisreferredtointhisworkasacitationand/orapotentialsourceoffurtherinformationdoesnotmeanthattheauthororthepublisherendorsestheinformationtheorganizationorWebsitemayprovideorrecommendationsitmaymakeFurtherreadersshouldbeawarethatInternetWebsiteslistedinthisworkmayhavechangedordisappearedbetweenwhenthisworkwaswrittenandwhenitisreadForgeneralinformationonourotherproductsandservicesortoobtaintechnicalsupportpleasecontactourCustomerCareDepartmentwithintheU.S.at(877)762-2974,outsidetheUS.at(317)5723993orfax(317)572-4002Wileypublishesinavarietyofprintandelectronicformatsandbyprint-on-demand.Somematerialincludedwithstandardprintversionsofthisbookmaynotbeincludedine-booksorinprint-On-demand.IfthisbookreferstomediasuchasaCDorDVdthatisnotincludedintheversionyoupurchasedyoumaydownloadthismaterialathttp://booksupport.wilev.comFormoreinformationaboutwileyproductsvisitwww.wiley.comLibraryofCongressControlNumber:2018933561TRADEMARKS:Wiley,theWileylogo,andtheSybexlogoaretrademarksorregisteredtrademarksofJohnWileySons,Incand/oritsaffiliates,intheUnitedStatesandothercountries,andmaynotbeusedwithoutwrittenpermission.CISSPisaregisteredtrademarkof(ISC)2,Inc.AllothertrademarksarethepropertyoftheirrespectiveownersJohnWileySons,Incisnotassociatedwithanyproductorvendormentionedinthisbook.ToDewittLatimer,mymentor,friend,andcolleague.Imissyoudearly.MikeChappleToCathy,yourperspectiveontheworldandlifeoftensurprisesme,challengesme,andmakesmeloveyouevenmoreJamesmichaelstewartToNimfa,thanksforsharingyourlifewithmeforthepast26yearsandlettingmeshareminewithyouDarrilgibsonDearFuture(ISC)2MemberCongratulationsonstartingyourjourneytoCISSPRcertificationEarningyourCISSPisanexcitingandrewardingmilestoneinyourcybersecuritycareer.Notonlydoesitdemonstrateyourabilitytodevelopandmanagenearlyallaspectsofanorganizationscybersecurityoperations,butyoualsosignaltoemployersyourcommitmenttolife-longlearningandtakinganactiveroleinfulfillingthe(isc)2visionofinspiringasafeandsecurecyberworldThematerialinthisstudyguideisbaseduponthe(isc)2cisspCommonBodyofKnowledge.ItwillhelpyoupreparefortheexamthatwillassessyourcompetencyinthefollowingeightdomainsaSecurityandriskmanagement■AssetsecuritySecurityArchitectureandengineeringaCommunicationandNetworksecurityaIdentityandAccessManagement(IAM)SecurityAssessmentandTesting■SecurityOperationsSoftwareDevelopmentSecurityWhilethisstudyguidewillhelpyouprepare,passingthecisspexamdependsonyourmasteryofthedomainscombinedwithyourabilitytoapplythoseconceptsusingyourreal-worldexperienceiwishyouthebestofluckasyoucontinueonyourpathtobecomeaCISSPandcertifiedmemberof(Isc)2Sincerely,Davidshearer.CISSPCEO(ISC)2Ackn。
w|edgmentsWe'dliketoexpressourthankstoSybexforcontinuingtosupportthisproject.Extrathankstotheeightheditiondevelopmentaleditor,kellyTalbot,andtechnicaleditors,JeffParker,BobSipes,andDavidSeidlwhoperformedamazingfeatsinguidingustoimprovethisbookThanksaswelltoouragent,CaroleJelen,forcontinuingtoassistinnailingdowntheseprojectsMikejames.anddarrilSpecialthanksgototheinformationsecurityteamattheUniversityofNotreDame,whoprovidedhoursofinterestingconversationanddebateonsecurityissuesthatinspiredandinformedmuchofthematerialinthisbookIwouldliketothanktheteamatwileywhoprovidedinvaluableassistancethroughoutthebookdevelopmentprocess.ialsooweadebtofgratitudetomyliteraryagent,CaroleJelenofWatersideProductions.Mycoauthors,JamesMichaelStewartanddarrilGibsonweregreatcollaborators.JeffParker,BobSipes,andDavidSeidl,ourdiligentandknowledgeabletechnicaleditors,providedvaluableinsightaswebroughtthiseditiontopressIdalsoliketothankthemanypeoplewhoparticipatedintheproductionofthisbookbutwhomIneverhadthechancetomeet:thegraphicsteam,theproductionstaff,andallofthoseinvolvedinbringingthisbooktopress-MikeChappleThankstoMikeChappleandDarrilGibsonforcontinuingtocontributetothisprojectThanksalsotoallmycisspcoursestudentswhohaveprovidedtheirinsightandinputtoimprovemytrainingcoursewareandultimatelythistome.Tomyadoringwife,CathyBuildingalifeandafamilytogetherhasbeenmorewonderfulthanIcouldhaveeverimagined.ToSlaydeandremi:youaregrowingupsofastandlearningatanoutstandingpace,andyoucontinuetodelightandimpressmedaily.YouarebothgrowingintoamazingindividualsTomymom,Johnnie:ItiswonderfultohaveyouclosebyToMarkNomatterhowmuchtimehaspassedorhowlittleweseeeachother,Ihavebeenandalwayswillbeyourfriend.andfinally,asalways,toElvis:Youwerewayaheadofthecurrentbaconobsessionwithyourpeanutbutter/banana/baconsandwich;ithinkthat'sproofyoutraveledthroughtimeJamesmichaelStewartThankstoJimMinatelandCaroleJelenforhelpinggetthisupdateinplacebefore(IsC)2releasedtheobjectives.Thishelpedusgetaheadstartonthisnewedition,andweappreciateyourefforts.It'sbeenapleasureworkingwithtalentedpeoplelikeJamesMichaelStewartandMikeChappleThankstobothofyouforallyourworkandcollaborativeeffortsonthisproject.Thetechnicaleditors,JeffParkerBobSipes,andDavidSeidl,provideduswithsomeoutstandingfeedback,andthisbookisbetterbecauseoftheireffortsThankstotheteamatSybex(includingprojectmanagers,editors,andgraphicsartists)foralltheworkyoudidhelpingusgetthisbooktoprint.Last,thankstomywife,Nimfa,forputtingupwithmyoddhoursasIworkedonthisbookDarrilgibsonAbouttheauthorsMikeChapple,CISSP,PhD,Security+,CISA,CySA+,isanassociateteachingprofessorofIT,analytics,andoperationsattheUniversityofNotreDame.InthepasthewaschiefinformationofficerofBrandInstituteandaninformationsecurityresearcherwiththenationalSecurityagencyandtheu.s.airForcehisprimaryareasofexpertiseincludenetworkintrusiondetectionandaccesscontrols.mikeisafrequentcontributortoTechTarget'sSearchSecuritysiteandtheauthorofmorethan25booksincludingthecompanionbooktothisstudyguide:CISSPOfficial(ISC)2PracticeTests,theCompTIACSA+StudyGuide,andCyberwarfare:InformationOperationsinaConnectedWorld.MikeoffersstudygroupsfortheCISSP,SSCP,Security+,andcSa+certificationsonhiswebsiteatwww.certmike.comJamesMichaelStewart,CISSP,CEH,ECSA,CHFI,Security+Network+,hasbeenwritingandtrainingformorethan20years,withacurrentfocusonsecurity.hehasbeenteachingCiSsPtrainingcoursessince2002,nottomentionothercoursesonInternetsecurityandethicalhacking/penetrationtestingHeistheauthorofandcontributortomorethan75booksandnumerouscoursewaresetsonsecuritycertification,Microsofttopics,andnetworkadministrationincludingtheSecurity+(SY0-501)Reviewguide.Moreinformationaboutmichaelcanbefoundathiswebsiteatwww.impactonline.comDarrilGibson,CISSP,Security+,CASP,istheCeoofYODa(shortforYouCanDoAnything),andhehasauthoredorcoauthoredmorethan40books.Darrilregularlywrites,consults,andteachesonawidevarietyoftechnicalandsecuritytopicsandholdsseveralcertificationsHeregularlypostsblogarticlesathttp://blogs.getcertifiedgetahead.com/aboutcertificationtopicsandusesthatsitetohelppeoplestayabreastofchangesincertificationexams.Heloveshearingfromreaders,especiallywhentheypassanexamafterusingoneofhisbooks,andyoucancontacthimthroughthelebloggingsite.

使用固态源MBE系统进行锑化镓基量子阱激光器结构的外延生长，通过优化稳定生长条件，结合标准宽条形激光器制备工艺，获得了在15℃工作温度下823mW的连续光输出，注入电流0.5A时，峰值波长为1.98μm。
在1000Hz，5%占空比的脉冲工作模式下，最大脉冲功率达到1.868W。

在日常工作中，钉钉打卡成了我生活中不可或缺的一部分。然而，有时候这个看似简单的任务却给我带来了不少烦恼。 每天早晚，我总是得牢记打开钉钉应用，点击"工作台"，再找到"考勤打卡"进行签到。有时候因为工作忙碌，会忘记打卡，导致考勤异常，影响当月的工作评价。而且，由于我使用的是苹果手机，有时候系统更新后，钉钉的某些功能会出现异常，使得打卡变得更加麻烦。 另外，我的家人使用的是安卓手机，他们也经常抱怨钉钉打卡的繁琐。尤其是对于那些不太熟悉手机操作的长辈来说，每次打卡都是一次挑战。他们总是担心自己会操作失误，导致打卡失败。 为了解决这些烦恼，我开始思考是否可以通过编写一个全自动化脚本来实现钉钉打卡。经过一段时间的摸索和学习，我终于成功编写出了一个适用于苹果和安卓系统的钉钉打卡脚本。