TheModernC++Challenge:Becomeanexpertprogra妹妹erbysolvingreal-worldproblemsTestyourC++progra妹妹ingskillsbysolvingreal-worldprogra妹妹ingproblemscoveredinthebookC++isoneofthemostwidely-usedprogra妹妹inglanguagesandhasapplicationsinavarietyoffields,suchasgaming,GUIprogra妹妹ing,andoperatingsystems,tonameafew.WhatYouWillLearnSerializeanddeserializeJSONandXMLdataPerformencryptionandsigningtofacilitatesecureco妹妹unicationbetweenpartiesEmbedanduseSQLitedatabasesinyourapplicationsUsethreadsandasynchronousfunctionstoimplementgenericpurposeparallelalgorithmsCompressanddecompressfilesto/fromaZIParchiveImplementdatastructuressuchascircularbufferandpriorityqueueImplementgeneralpurposealgorithmsaswellasalgorithmsthatsolvespecificproblemsCreateclient-serverapplicationsthatco妹妹unicateoverTCP/IPConsumeHTTPRESTservicesUsedesignpatternstosolvereal-worldproblems

PCIExpress3.0isthelatestgenerationofthepopularperipheralinterfacefoundinvirtuallyeveryPC,server,andindustrialcomputer.Itshighbandwidth,lowlatency,andcost-to-performanceratiomakeitanaturalchoiceformanyperipheraldevicestoday.EachnewgenerationofPCIExpressaddsmorefeatures,capabilitiesandbandwidth,whichmaintainsitspopularityasadeviceinterconnect.MindShare'sbookstakethehardworkoutofdecipheringthespecs,andthisonefollowsthattradition.MindShare'sPCIExpressTechnologybookprovidesathoroughdescriptionoftheinterfacewithnumerouspracticalexamplesthatillustratetheconcepts.Writteninatutorialstyle,thisbookisidealforanyonenewtoPCIExpress.Atthesametime,itsthoroughcoverageofthedetailsmakesitanessentialresourceforseasonedveterans.次要内容如下：PCIExpressOriginsConfigurationSpaceandAccessMethodsEnumerationProcessPacketTypesandFieldsTransactionOrderingTrafficClasses,VirtualChannelsandArbitration(QoS)FlowControlACK/NAKProtocolLogicalPHY(8b/10b,128b/130b,Scrambling)ElectricalPHYLinkTrainingandInitializationInterruptDelivery(Legacy,MSI,MSI-X)ErrorDetectionandReportingPowerManagement(forbothsoftwareandhardware)2.0and2.1Features(suchas5.0GT/s,TLPHints,andMulti-Casting)3.0Features(suchas8.0GT/s,andanewencodingscheme)ConsiderationsforHighSpeedSignaling(suchasEqualization)

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MasteringROSforRoboticsProgra妹妹ingisanadvancedguideofROSthatisverysuitableforreaderswhoalreadyhaveabasicknowledgeinROS.ROSiswidelyusedinroboticscompanies,universities,androboticsresearchinstitutesfordesigning,building,andsimulatingarobotmodelandinterfacingitintorealhardware.ROSisnowanessentialrequirementforRoboticengineers;thisguidecanhelpyouacquireknowledgeofROSandcanalsohelpyoupolishyourskillsinROSusinginteractiveexamples.Eventhoughitisanadvancedguide,youcanseethebasicsofROSinthefirstchaptertorefreshtheconcepts.ItalsohelpsROSbeginners.ThebookmainlyfocusesontheadvancedconceptsofROS,suchasROSNavigationstack,ROSMoveIt!,ROSplugins,nodelets,controllers,ROSIndustrial,andsoon.

编程序，让计算机来猜测用户“暗记”的某张扑克牌：计算机从一副扑克牌（54张）中任意抽出27张，摆放在不同的三行上（每行9张），用户“暗记”某张纸牌，而后告诉计算机所“暗记”的那张纸牌处于哪一行中；
之后计算机再两次将纸牌重新摆放，并让用户再回答两次相反的提问（那张纸牌在重新摆放后又处在哪一行上）；
此时计算机会将用户所“暗记”的那张纸牌给挑出来。
例如，程序执行后的屏幕显示结果可设计为（其中的前缀a、b、c、d代表四种不同的花色）：-------------------------------------------------------------Line1:c-9d-3a-7d-9a-9c-3b-8a-Ad-7Line2:b-10a-Qd-6b-4a-3b-9b-Kc-Ad-8Line3:KING2d-Ab-Aa-4a-2b-7d-5c-7a-8-------------------------------------------------------------Rememberacard,andtellmewhatlineitresidein(1/2/3):3-------------------------------------------------------------Line1:c-9d-3a-7b-10a-Qd-6KING2d-Ab-ALine2:d-9a-9c-3b-4a-3b-9a-4a-2b-7Line3:b-8a-Ad-7b-Kc-Ad-8d-5c-7a-8-------------------------------------------------------------Whatlinethecardyourememberedresideinnow(1/2/3):1-------------------------------------------------------------Line1:c-9b-10KING2d-9b-4a-4b-8b-Kd-5Line2:d-3a-Qd-Aa-9a-3a-2a-Ac-Ac-7Line3:a-7d-6b-Ac-3b-9b-7d-7d-8a-8-------------------------------------------------------------Whatlinethecardyourememberedresideinnow(1/2/3):1-------------------------------------------------------------Yourrememberedcardis:KING2

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。