学习如何像专家一样利用现在C++进行高效编程。
书中多用C++11和C++14的新特性以及42个条款说明了利用现代C++进行编程的最佳实践。
作者为EffectiveC++,MoreEffectiveC++,andEffectiveSTL系列的作者ScottMeyers，书的质量绝对有保证。

基本信息原书名：EffectiveC++:55SpecificWaystoImproveYourProgramsandDesigns(3rdEdition)原出版社：Addison-WesleyProfessional作者：(美)ScottMeyers译者：侯捷丛书名：传世经典书丛出版社：电子工业出版社ISBN：9787121123320出版日期：2011年1月开本：16开页码：336版次：3-1编辑本段编辑推荐传承大师智慧领悟技术本真经典名著翻译良品典藏不二之选编辑本段内容简介有人说c++程序员可以分为两类，读过effectivec++的和没读过的。
世界顶级c++大师scottmeyers成名之作的第三版的确当得起这样的评价。
当您读过这本书之后，就获得了迅速提升自己c++功力的一个契机。
在国际上，本书所引起的反响，波及整个计算机技术的出版领域，余音至今未绝。
几乎在所有c++书籍的推荐名单上，本书都会位于前三名。
作者高超的技术把握力、独特的视角、诙谐轻松的写作风格、独具匠心的内容组织，都受到极大的推崇和仿效。
这种奇特的现象，只能解释为人们对这本书衷心的赞美和推崇。
这本书不是读完一遍就可以束之高阁的快餐读物，也不是用以解决手边问题的参考手册，而是需要您去反复阅读体会的，c++是真正程序员的语言，背后有着精深的思想与无以伦比的表达能力，这使得它具有类似宗教般的魅力。
希望这本书能够帮您跨越c++的重重险阻，领略高处才有的壮美风光，做一个成功而快乐的c++程序员。
编辑本段作译者ScottMeyers是全世界最知名的C++软件开发专家之一。
他是畅销书《EffectiveC++》系列（EffectiveC++，MoreEffectiveC++，EffectiveSTL）的作者，又是创新产品《EffectiveC++CD》的设计者和作者，也是Addison-Wesley的“EffectiveSoftwareDevelopmentSeries”顾问编辑，以及《SoftwareDevelopment》杂志咨询板成员。
他也为若干新公司的技术咨询板提供服务。
Meyers于1993年自Brown大学获得计算机博士学位。
侯捷是计算机技术书籍的作家、译者、书评人编辑本段目录译序vii中英简繁术语对照ix目录xvii序言xxi致谢xxiii导读11让自己习惯c++11accustomingyourselftoc++11条款01：视c++为一个语言联邦11viewc++asafederationoflanguages11条款02：尽量以const,enum,inline替换#define13preferconsts,enums,andinlinesto#defines13条款03：尽可能使用const17useconstwheneverpossible17条款04：确定对象被使用前已先被初始化26makesurethatobjectsareinitializedbeforethey'reused262构造/析构/赋值运算34constructors,destructors,andassignmentoperators34条款05：了解c++默默编写并调用哪些函数34knowwhatfunctionsc++silentlywritesandcalls34条款06：若不想使用编译器自动生成的函数，就该明确拒绝37explicitlydisallowtheuseofcompiler-generatedfunctionsyoudonotwant37条款07：为多态基类声明virtual析构函数40declaredestructorsvirtualinpolymorphicbaseclasses40条款08：别让异常逃离析构函数44preventexceptionsfromleavingdestructors44条款09：绝不在构造和析构过程中调用virtual函数48nevercallvirtualfunctionsduringconstructionordestruction48条款10：令operator=返回一个referenceto*this52haveassignmentoperatorsreturnareferenceto*this

DML(DataManipulationLanguage,数据操作语言),用于检索或者更新数据DDL(DataDefinitionLanguage,数据定义语言)，用于定义数据的结构，如创建，修改或者删除数据库对象DCL(DataControlLanguage,数据控制语言)，定义数据库用户的权限创建用户给权限*我在这用的是oracle12c，oracle11g可直接解锁scott用户来练习SQL语句*用sys用户解锁并给密码：特性：语法：SELECT[DISTINCT]*|字段[别名],[字段[别名]]FROM表名称[表别名]查询dept表的全部记录查询每个雇员的编号，姓名和基本工资查询每个

本资源为ScottMurray的InteractiveDataVisualizationfortheWeb一书中的源代码示例，包含大量D3.js的代码，适合D3的学习者。

DifferentialEquationsandLinearAlgebra(4th)英文无水印原版pdf第4版pdf所有页面使用FoxitReader、PDF-XChangeViewer、SumatraPDF和Firefox测试都可以打开本资源转载自网络，如有侵权，请联系上传者或csdn删除查看此书详细信息请在美国亚马逊官网搜索此书EditorialDirector,Mathematics:ChristinehoagEditor-in-Chief:DeirdreLynchAcquisitionsEditor:WilliamHoffmaProjectTeamLead:ChristinaleProjectmanager:LaurenMorseEditorialAssistant:JenniferSnyderProgramTeamLead:KarenwernholmProgramManagerDaniellesimbajonCoverandillustrationDesign:StudioMontageProgramDesignLead:BethPaquinProductMarketingManagerClaireKozarProductMarketingCoordiator:BrookesmithFieldMarketingManager:EvanStCyrSeniorAuthorSupport/TechnologySpecialist:JoevetereSeniorProcurementSpecialist:CarolMelvilleInteriorDesign,ProductionManagement,AnswerArt,andCompositioneNergizerAptara,LtdCoverImage:LighttrailsonmodernbuildingbackgroundinShanghai,China-hxdyl/123RFCopyrightO2017,2011,2005PearsonEducation,Inc.oritsaffiliates.AllRightsReserved.PrintedintheUnitedStatesofAmerica.Thispublicationisprotectedbycopyright,andpermissionshouldbeobtainedfromthepublisherpriortoanyprohibitedreproduction,storageinaretrievalsystem,ortransmissioninanyformorbyanymeans,electronic,mechanical,photocopyingrecording,orotherwise.Forinformationregardingpermissions,requestformsandtheappropriatecontactswithinthePearsonEducationGlobalRights&Permissionsdepartmentpleasevisitwww.pearsoned.com/permissions/PEARSONandALWAYSLEARNINGareexclusivetrademarksintheU.s.and/orothercountriesownedbyPearsonEducation,Inc.oritsaffiliatesUnlessotherwiseindicatedherein,anythird-partytrademarksthatmayappearinthisworkarethepropertyoftheirrespectiveowandanyreferencestothird-partytrademarks,logosorothertradedressarefordemonstrativeordescriptivepurposesonly.SuchofsuchmarksoranyrelationshipbetweentheownerandPearsonEducation,Inc.oritsaffiliates,authors,licenseesordistributortreferencesarenotintendedtoimplyanysponsorship,endorsement,authorization,orpromotionofPearsonsproductsbytheownersLibraryofCongressCataloging-in-PublicationDataGoode.StephenwDifferentialequationsandlinearalgebra/StephenW.GoodeandScottA.AnninCaliforniastateUniversity,Fullerton.-4theditionpagescmIncludesindexISBN978-0-321-96467-0—ISBN0-32196467-51.Differentialequations.2.Algebras,Linear.I.Annin,Scott.II.TitleQA371.G6442015515’.35-dc23201400601512345678910V031-1918171615PEARSONISBN10:0-321-96467-5www.pearsonhighered.comISBN13:978-0-321-96467-0ContentsPrefacevii1First-OrderDifferentialEquations1.1DifferentialEquationsEverywhere11.2BasicIdeasandTerminology131.3TheGeometryofFirst-OrderDifferentialEquations231.4SeparableDifferentialEquations341.5SomeSimplePopulationModels451.6First-OrderLinearDifferentialEquations531.7ModelingProblemsUsingFirst-OrderLinearDifferentialEquations61.8Changeofvariables711.9ExactDifferentialEquations821.10Numericalsolutiontofirst-OrderDifferentialEquations931.11SomeHigher-OrderDifferentialEquations1011.12ChapterReview1062MatricesandSystemsofLinearEquations1142.1Matrices:Definitionsandnotation1152.2MatrixAlgebra1222.3TerminologyforSystemsofLinearEquations13824R。
w-EchelonMatricesandElementaryR。
wOperations1462.5Gaussianelimination1562.6TheInverseofasquarematrix1682.7ElementaryMatricesandtheLUFactorization1792.8TheInvertiblematrixtheoremi1882.9ChapterReview1903Determinants1963.1TheDefinitionofthedeterminant1963.2PropertiesofDeterminants2093.3CofactorExpansions2223.4SummaryofDeterminants2353.5ChapterReview242iyContents4VectorSpaces2464.1Vectorsinrn2484.2DefinitionofaVectorSpace2524.3Subspaces2634.4SpanningSets2744.5LinearDependenceandLinearIndependence2844.6Basesanddimension2984.7Changeofbasis3114.8RowSpaceandColumnSpace3194.9TheRank-NullityTheorem3254.10InvertibleMatrixTheoremll3314.11ChapterReview3325InnerProductSpaces3395.1DefinitionofanInnerproductspace3405.2OrthogonalSetsofvectorsandorthogonalProjections3525.3Thegram-Schmidtprocess3625.4LeastSquaresApproximation3665.5ChapterReview3766LinearTransformations3796.1Definitionofalineartransformation3806.2Transformationsofr23916.3TheKernelandrangeofalineartransformation3976.4AdditionalPropertiesofLinearTransformations4076.5Thematrixofalineartransformation4196.6Chaiterreview4287EigenvaluesandEigenvectors4337.1TheEigenvalue/EigenvectorProblem4347.2GeneralResultsforEigenvaluesandEigenvectors4467.3Diagonalization4547.4AnIntroductiontotheMatrixExponentialFunction4627.5OrthogonalDiagonalizationandQuadraticforms4667.6Jordancanonicalforms4757.7Chapterreview4888LinearDifferentialEquationsofOrdern4938.1GeneralTheoryforLinearDifferentialEquations4958.2ConstantCoefficientHomogeneousLinearDifferentialEquations5058.3ThemethodofundeterminedcoefficientsAnnihilators5158.4Complex-ValuedTrialSolutions5268.5OscillationsofaMechanicalSystem529Contentsv8.6RLCCircuits5428.7TheVariationofparametersmethod5478.8ADifferentialEquationwithNonconstantCoefficients5578.9Reductionoforder5688.10ChapterReview5739SystemsofDifferentialEquations5809.1First-OrderLinearSystems5829.2VectorFormulation5889.3GeneralResultsforfirst-OrderLinearDifferentialystems5939.4VectorDifferentialEquations:NondefectiveCoefficientMatrix5999.5VectorDifferentialEquations:DefectiveCoefficientMatrix6089.6Variation-of-ParametersforLinearSystems6209.7SomeApplicationsofLinearSystemsofDifferentialEquations6259.8MatrixExponentialFunctionandSystemsofDifferentialEquations6359.9ThePhasePlaneforLinearAutonomousSystems6439.10NonlinearSystems6559.11ChapterReview66310TheLaplaceTransformandSomeElementaryApplications67010.1DefinitionoftheLaplaceTransform67010.2TheExistenceofthelaplacetransformandtheInversetransform67610.3PeriodicFunctionsandtheLaplacetransform68210.4ThetransformofderivativesandsolutionofInitial-Valueproblems68510.5TheFirstShiftingTheorem69010.6TheUnitStepFunction69510.7TheSecondShiftingTheorem69910.8ImpulsiveDrivingTerms:TheDiracDeltaFunction70610.9TheConvolutionIntegral71110.10ChapterReview71711SeriesSolutionstoLinearDifferentiaEquations72211.1AReviewofpowerseries72311.2SeriesSolutionsaboutanOrdinaryPoint73111.3TheLegendreEquation74111.4SeriesSolutionsaboutaRegularSingularPoint75011.5Frobeniustheory75911.6Bessel'sEquationofOrderp77311.7Chapterreview785ViContentsAReviewofComplexNumbers791BReviewofPartialFractions797CReviewofIntegrationTechniques804DLinearlyIndependentSolutionstox2y+xp(x)y+g(x)y=0811Answerstoodd-NumberedExercises814Index849S.W.GoodededicatesthisbooktomeganandtobiS.A.annindedicatesthisbooktoarthurandJuliannthebestparentsanyonecouldaskforPretraceLikethefirstthreeeditionsofDifferentialEquationsandLinearalgebra,thisfourtheditionisintendedforasophomorelevelcoursethatcoversmaterialinbothdifferentialequationsandlinearalgebra.Inwritingthistextwehaveendeavoredtodevelopthestudentsappreciationforthepowerofthegeneralvectorspaceframeworkinformulatingandsolvinglinearproblems.Thematerialisaccessibletoscienceandengineeringstu-dentswhohavecompletedthreesemestersofcalculusandwhobringthematurityofthatsuccesswiththemtothiscourseThistextiswrittenaswewouldnaturallyteachblendinganabundanceofexamplesandillustrations,butnotattheexpenseofadeliberateandrigoroustreatment.MostresultsareprovenindetailHowever,manyofthesecanbeskippedinfavorofamoreproblem-solvingorientedapproachdependingonthereader'sobjectives.Somereadersmayliketoincorporatesomeformoftechnology(computeralgebrasystem(CAS)orgraphingcalculator)andthereareseveralinstancesinthetextwherethepoweroftechnologyisillustratedusingtheCasMaple.Furthermore,manyexercisesetshaveproblemsthatrequiresomeformoftechnologyfortheirsolutionTheseproblemsaredesignatedwithaoIndevelopingthefourtheditionwehaveoncemorekeptmaximumflexibilityofthematerialinmind.Insodoing,thetextcaneffectivelyaccommodatethedifferentemphasesthatcanbeplacedinacombineddifferentialequationsandlinearalgebracourse,thevaryingbackgroundsofstudentswhoenrollinthistypeofcourse,andthefactthatdifferentinstitutionshavedifferentcreditvaluesforsuchacourse.Thewholetextcanbecoveredinafivecredit-hourcourse.Forcourseswithalowercredit-hourvalue,someselectivitywillhavetobeexercised.Forexample,much(orall)ofChapterImaybeomittedsincemoststudentswillhaveseenmanyofthesedifferentialequationstopicsinanearliercalculuscourse,andtheremainderofthetextdoesnotdependonthetechniquesintroducedinthischapter.Alternatively,whileoneofthemajorgoalsofthetextistointerweavethematerialondifferentialequationswiththetoolsfromlinearalgebrainasymbioticrelationshipasmuchaspossible,thecorematerialonlinearalgebraisgiveninChapters2-7sothatitispossibletousethisbookforacoursethatfocusessolelyonthelinearalgebrapresentedinthesesixchapters.ThematerialondifferentialequationsiscontainedprimarilyinChapters1and8-1l,andreaderswhohavealreadytakenafirstcourseinlinearalgebracanchoosetoproceeddirectlytothesechaptersThereareothermeansofeliminatingsectionstoreducetheamountofmaterialtobecoveredinacourse.Section2.7containsmaterialthatisnotrequiredelsewhereinthetext,Chapter3canbecondensedtoasinglesection(Section3.4)forreadersneedingonlyacursoryoverviewofdeterminants,andSections4.7,5.4,andthelatersectionsofChapters6and7couldallbereservedforasecondcourseinlinearalgebra.InChapter8Sections8.4,8.8,and8.9canbeomitted,and,dependingonthegoalsofthecourse,Sections8.5and8.6couldeitherbede-emphasizedoromittedcompletelySimilarremarksapplytoSections9.7-9.10.AtCaliforniaStateUniversity,Fullertonwehaveafourcredit-hourcourseforsophomoresthatisbasedaroundthematerialinChapters1-9viiiPrefaceMajorChangesintheFourthEditionSeveralsectionsofthetexthavebeenmodifiedtoimprovetheclarityofthepresentationandtoprovidenewexamplesthatreflectinsightfulillustrationswehaveusedinourowncoursesatCaliforniaStateUniversity,Fullerton.OthersignificantchangeswithinthetextarelistedbeleOW1.ThechapteronvectorspacesinthepreviouseditionhasbeensplitintotwochaptersChapters4and5)inthepresentedition,inordertofocusseparateattentiononvectorspacesandinnerproductspaces.Theshorterlengthofthesetwochaptersisalsointendedtomakeeachofthemlessdaunting2.Thechapteroninnerproductspaces(Chapter5)includesanewsectionprovidinganapplicationoflinearalgebratothesubjectofleastsquaresapproximation3.Thechapteronlineartransformationsinthepreviouseditionhasbeensplitintotwochapters(Chapters6and7)inthepresentedition.Chapter6isfocusedonlineartransformations,whileChapter7placesdirectemphasisonthetheoryofeigenvaluesandeigenvectors.Oncemore,readersshouldfindtheshorterchapterscoveringthesetopicsmoreapproachableandfocused4.Mostexercisesetshavebeenenlargedorrearranged.Over3,000problemsarenowcontainedwithinthetext,andmorethan600concept-orientedtrue/falseitemsarealsoincludedinthetext5.Everychapterofthebookincludesoneormoreoptionalprojectsthatallowformorein-depthstudyandapplicationofthetopicsfoundinthetext6.ThebackofthebooknowincludestheanswertoeveryTrue-FalsereviewitemcontainedinthetextAcknowledgmentsWewouldliketoacknowledgethethoughtfulinputfromthefollowingreviewersofthefourthedition:JameyBassofCityCollegeofSanFrancisco,TamarFriedmannofUniversityofrochester,andlinghaiZhangofLehighUniversityAlloftheircommentswereconsideredcarefullyinthepreparationofthetextS.A.Annin:Ioncemorethankmyparents,ArthurandJuliannAnnin,fortheirloveandencouragementinallofmyprofessionalendeavors.Ialsogratefullyacknowledgethemanystudentswhohavetakenthiscoursewithmeovertheyearsand,insodoinghaveenhancedmyloveforthesetopicsanddeeplyenrichedmycareerasaprofessorFirst-OrderDifferentiaEquations1.1DifferentialEquationsEverywhereadifferentialequationisanyequationthatinvolvesoneormorederivativesofanunknownfunction.Forexample(1.1.1dxds(S-1)(1.1.2)aredifferentialequations.Inthedifferentialequation(1.1.1)theunknownfunctionordependentvariableisy,andxistheindependentvariable;inthedifferentialequation(1.1.2)thedependentandindependentvariablesareSandt,respectively.Differentialequationssuchas(1.1.1)and(1.1.)inwhichtheunknownfunctiondependsonlyonasingleindependentvariablearecalledordinarydifferentialequations.Bycontrast,thedifferentialequationLaplace'sequation)0involvespartialderivativesoftheunknownfunctionu(x,y)oftwoindependentvariablesxandy.SuchdifferentialequationsarecalledpartialdifferentialequationsOnewayinwhichdifferentialequationscanbecharacterizedisbytheorderofthehighestderivativethatoccursinthedifferentialequationThisnumberiscalledtheorderofthedifferentialequation.Thus,(l1.1)hasordertwo,whereas(1.1.2)isafirst-orderdifferentialequation1

SunnyKing,ScottNada讲述POS的一篇论文。
PPC是从中本聪所创造的BTC衍生出来的一种P2P的电子密码货币，以权益证明（ProofofStake，以下简称POS）取代工作量证明（ProofofWork，以下简称POW）来维护网络安全。

React起源于Facebook的内部项目，因为该公司对市场上所有JavaScriptMVC框架，都不满意，就决定自己写一套，用来架设Instagram的网站。
做出来以后，发现这套东西很好用，就在2013年5月开源了。
由于React的设计思想极其独特，属于革命性创新，性能出众，代码逻辑却非常简单。
所以，越来越多的人开始关注和使用，认为它可能是将来Web开发的主流工具。
来自MuseFind的ScottDomes日前写了一篇文章，阐述了他们编写React组件的最佳实践。
ScottDomes是MuseFind的前端移动开发工程师。
经作者授权，InfoQ翻译并分享本文。
以下是正文：当我第一次开始写Re

EffectiveModernC++(英文原版)[美]斯科特·迈耶（ScottMeyers）著梅耶尔巨匠Effective驰名书系新作！25年C++老兵侯捷推选！42招独家本领助你改善C++11/14高成果法,本书是齐全C++软件开拓工程师的必读之选想要残缺知道C++11以及C++14，不可止步于熟习它们引入的语言特色（譬如，auto型别推导、挪动语义、lambda表白式，以及并发反对于）。
挑战在于高效地使用这些特色，从而使你的软件具备准确性、高功能、可掩护性以及可移植性。
这恰是本书意欲杀青的定位。
它描摹的恰是使用C++11以及C++14（即现代C++）来编写真正精采的软件之道。
本书是齐全C++软件开拓工程师的必读之选

Oraclescott用户下的4个表(empbonusdeptsalgrade)的建表的SQL语句以及相关的测试数据，提供4个版本Access2007，Access2003，SQLServer2008，Oracle另外另有一个Su妹妹it2是用在Oracle下的无关SportingGoodsbusinessscenario的测试数据的SQL

UNIX环境高级编程第三版(英文原版)（超明晰pdf）ThefirsteditionofthebookwaspublishedbyAddison-Wesleyin1992.ItcoveredprogrammingforthetwopopularfamiliesoftheUnixoperatingsystem,theBerkeleySoftwareDistribution(inparticular4.3BSDand386BSD)andAT&T'sUNIXSystemV(particularlySVR4).Thebookcoverssystemcallsforoperationsonsinglefiledescriptors,specialcallslikeioctlthatoperateonfiledescriptors,andoperationsonfilesanddirectories.ItcoversthestdiosectionoftheCstandardlibrary,andotherpartsofthelibraryasneeded.TheseveralchaptersconcerntheAPIsthatcontrolprocesses,processgroups,daemons,inter-processcommunication,andsignals.OnechapterisdevotedtotheUnixterminalcontrolandanothertothepseudoterminalconceptandtolibrariesliketermcapandcursesthatbuildatopit.StevensaddsthreechaptersgivingmoreconcreteexamplesofUnixprogramming:heimplementsadatabaselibrary,communicateswithaPostScriptprinter,andwithamodem.Thebookdoesnotcovernetworkprogramming:thisisthesubjectofStevens'1990bookUNIXNetworkProgrammingandhissubsequentthree-volumeTCP/IPIllustrated.Stevensdiedin1999leavingasecondeditionincomplete.WiththeincreasingpopularityandtechnicaldiversificationofUnixderivatives,andlargelycompatiblesystemsliketheLinuxenvironment,thecodeandcoverageofStevens'originalbecameincreasinglyoutdated.WorkingwithStevens'unfinishednotes,StephenA.RagocompletedasecondeditionwhichAddison-Wesleypublishedin2005.ThisaddedsupportforFreeBSD,Linux,Sun'sSolaris,andApple'sDarwin,andaddedcoverageofmultithreadedprogrammingwithPOSIXThreads.ThesecondeditionfeaturesaforewordbyDennisRitchieandaUnix-themedDilbertstripbyScottAdams.Thebookhasbeenwidelylaudedaswellwritten,wellcrafted,andcomprehensive.Itreceiveda"heartyrecommendation"inaLinuxJournalreview[1]OSNewsdescribesit

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。