C++、网络客户端、断网重连、Ws2_32.lib

Theultra-compactbiosensorbasedonthetwo-dimensional(2D)photoniccrystal(PhC)microcavityisinvestigated.TheperformancesofthesensorareanalyzedtheoreticallyusingtheFabry-Perot(F-P)cavitymodelandsimulatedusingthefinite-differencetime-domain(FDTD)method.Thesimulationres

该代码用Qt4开发工具编写而成，界面所用模板为MainWindow，该模板可带下拉菜单选项，该代码在此基础上实现了对图片的基本操作。
例如缩放，窗口填充，大小还原。

Domain-SpecificModelingLanguage(DSML)definedbyinformalwaycannotpreciselyrepresentitsstructuralsemantics,sopropertiesofmodelssuchasconsistencycannotbesystematicallyanalyzedandverified.Inresponse,thepaperproposesanapproachforautomatical-lyreasoningconsistencyofDS

intmain(void){delay_init();//延时函数初始化NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2);//设置NVIC中断分组2:2位抢占优先级，2位响应优先级uart_init(115200);//串口初始化为115200LED_Init();//初始化与LED连接的硬件接口TM1637_Init();while(1){delay_ms(1);//延时1msTM1637_NixieTubeDisplay();TM1637_NixieTubeDisplayChar(1,0);//第一位显示1TM1637_NixieTubeDisplayChar(2,1);//第二位显示2TM1637_NixieTubeDisplayChar(3,2);//第三位显示3TM1637_NixieTubeDisplayChar(4,3);//第四位显示4}}

安卓增加自启动守护进程时，selinux权限的增加方式

DistributedSystems(3rd)英文无水印原版pdf第3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Copyright@2017MaartenvanSteenandAndrewS.TanenbaumPublishedbyMaartenvanSteenThisbookwaspreviouslypublishedby:PearsonEducation,IncISBN:978-15-430573-8-6(printedversion)ISBN:978-90-815406-2-9(digitalversion)Edition:3.Version:01(February2017)AllrightstotextandillustrationsarereservedbyMaartenvanSteenandAndrewS.Tanenbaum.Thisworkmaynotbecopied,reproduced,ortranslatedinwholeorpartwithoutwrittenpermissionofthepublisher,exceptforbriefexcerptsinreviewsorscholanyformofinformationstorageadaptationorwhatever,computersoftware,orbysimilarordissimilarmethodsnowknownordevelopedinthefutureisstrictlyforbiddenwithoutwrittenpermissionofthepublisherToMarielle,max,andelkeMVSToSuzanneBarbara,Marvin,Aronnathan,olivia,andmirteASTCONTENTSPreface1Introduction1.1Whatisadistributedsystem?Characteristic1:Collectionofautonomouscomputingelements2Characteristic2:SinglecoherentsystemMiddlewareanddistributedsystems1.2DesigngoalsSupportingresourcesharingMakingdistributiontransparent12Beingscalable15Pitfalls243Typesofdistributedsystems24Highperformancedistributedcomputing25Distributedinformationsystems34Pervasivesystems1.4Summary522Architectures552.1Architecturalstyles56Layeredarchitectures.57Object-basedandservice-orientedarchitectures62Resource-basedarchitectures64Publish-subscribearchitectures2.2MiddlewareorganizationWrappersInterceptors垂番Modifiablemiddleware752.3SystemarchitectureCONTENTSCentralizedorganizations76Decentralizedorganizations:peer-to-peersystemsHybridarchitectures2.4Examplearchitectures94TheNetworkFilesystem94TheWeb982.5Summary3Processes1033.1Threads..104Introductiontothreads104Threadsindistributedsystems1113.2Virtualization116Principleofvirtualizationapplicationofvirtualmachinestodistributedsystems,1223.3Clients124Networkeduserinterfaces124Client-sidesoftwarefordistributiontransparency1273.4Servers128Generaldesignissues129Objectservers133Example:TheApacheWebserver139Serverclusters,,,,,,,1413.5Codemigration152Reasonsformigratingcode152Migrationinheterogeneoussystems1583.6Summary1614Communication4.1Foundations164LayeredProtocols164TypesofCommunication.1724.2Remoteprocedurecall..173Basicrpcoperation174Parameterpassing178RPC-basedapplicationsupport182VariationsonrPc185Example:dCErPc,.1884.3Message-orientedcommunication193Simpletransientmessagingwithsockets.193Advancedtransientmessaging198Message-orientedpersistentcommunication206Example:IBM'sWebSpheremessage-queuingsystem212Example:AdvancedMessageQueuingProtocol(AMQP)....218DS3.01DOWNLOADEDBYTEWIGOMIXMAIL.INFOCONTENTS4.4Multicastcommunication221Application-leveltree-basedmulticasting221Flooding-basedmulticasting225Gossip-baseddatadissemination2294.5Summary2345Naming2375.1Names,identifiersandaddresses2385.2Flatnaming.241Simplesolutions241Home-basedapproaches245Distributedhashtables246Hierarchicalapproaches2515.3Structurednaming256Namespaces.256Nameresolution259Theimplementationofanamespace264Example:TheDomainNameSystem271Example:TheNetworkFileSystem2785.4Attribute-basednaming283Directoryservices283Hierarchicalimplementations:LDAP285Decentralizedimplementations2885.5Summary2946Coordination2976.1Clocksynchronization.298Physicalclocks299Clocksynchronizationalgorithms3026.2Logicalclocks310Lamport'slogicalclocks310Vectorclocks3166.3Mutualexclusion321322acentralizedalgorithm.322adistributedalgorithm323atoken-ringalgorithm.325adecentralizedalgorithm3266.4Electionalgorithms329Thebullyalgorithm.,..330Aringalgorithm332Electionsinwirelessenvironments333Electionsinlarge-scalesystems.3356.5Locationsystems336DOWNLOADEDBYTEWIGOMIXMAIL.INFODS301VIllCONTENTSGPS:GlobalPositioningSystem337WhengPsisnotanoption339Logicalpositioningofnodes3396.6Distributedeventmatching..343Centralizedimplementations3436.7Gossip-basedcoordination349asgregation349Apeer-samplingservice350Gossip-basedoverlayconstruction3526.8Summary3537Consistencyandreplication3557.1Introduction356Reasonsforreplication356Replicationasscalingtechnique3577.2Data-centricconsistencymodels358Continuousconsistency359Consistentorderingofoperations364Eventualconsistency3737.3Client-centricconsistencymodels375MonotonicreadsMonotonicwrites.379Readyourwrite380Writesfollowreads3827.4ReplicamanagementFindingthebestserverlocation383Contentreplicationandplacement..385Contentdistribution..388Managingreplicatedobjects3937.5Consistencyprotocols.396Continuousconsistency..........396Primary-basedprotocols398Replicated-writeprotocolsCache-coherence403Implementingclient-centricconsistency,,...4077.6Example:CachingandreplicationintheWeb4097.7Summar4208Faulttoleran4238.1Introductiontofaulttolerance424Basicconcepts.424Failuodels427Failuremaskingbyredundancy8.2Processresilience432DS3.01DOWNLOADEDBYTEWIGOMIXMAIL.INFO

Differenttypesoffemtosecondopticaltweezershavebecomeapowerfultoolinthemodernbiologicalfield.However,howtocontroltheirregulartargets,includingbiologicalcells,usingfemtosecondopticaltweezersremainstobeexplored.Inthisstudy,humanredbloodcells(hRBCs)aremanipulatedwithfemtosecondopticaltweezers,andtheirstatesunderdifferentlaserpowersareinvestigated.TheresultsindicatethatopticalpotentialtrapsonlycancapturetheedgeofhRBCsunderthelas

opengl20面体#include#defineX.525731112119133606#defineZ.850650808352039932staticGLfloatvdata[12][3]={//各顶点坐标{-X,0.0,Z},{X,0.0,Z},{-X,0.0,-Z},{X,0.0,-Z},{0.0,Z,X},{0.0,Z,-X},{0.0,-Z,X},{0.0,-Z,-X},{Z,X,0.0},{-Z,X,0.0},{Z,-X,0.0},{-Z,-X,0.0},};staticGLuinttindices[20][3]={//构成各面（三角形）的顶点索引{1,4,0},{4,9,0},{4,5,9},{8,5,4},{1,8,4},{1,10,8},{10,3,8},{8,3,5},{3,2,5},{3,7,2},{3,10,7},{10,6,7},{6,11,7},{6,0,11},{6,1,0},{10,1,6},{11,0,9},{2,11,9},{5,2,9},{11,2,7},};voiddisplay(){glClear(GL_COLOR_BUFFER_BIT);glBegin(GL_TRIANGLES);for(inti=0;i＜20;++i){glColor3f(1.0,1.0,i*1.0/20);//颜色设置glVertex3fv(&vdata;[tindices[i][0]][0]);glVertex3fv(&vdata;[tindices[i][1]][0]);glVertex3fv(&vdata;[tindices[i][2]][0]);}glEnd();glFlush();}voidinit(){glClearColor(0.0,0.0,0.0,0.0);}intmain(intargc,char**argv){glutInit(&argc;,argv);glutInitDisplayMode(GLUT_SINGLE|GLUT_RGB);glutInitWindowSize(250,250);glutInitWindowPosition(100,100);glutCreateWindow("Polygon");init();glutDisplayFunc(display);glutMainLoop();return0;}

packageasc;importjava.awt.*;importjavax.swing.*;publicclasscsextendsJFrame{//定义组件JPaneljp1,jp2,jp3;//面板JLabeljlb1,jlb2;//标签JButtonjb1,jb2;//按钮JTextFieldjtf;//文本JPasswordFieldjpf;//密码publicstaticvoidmain(String[]args){cswin=newcs();}//构造函数publiccs(){//创建面板jp1=newJPanel();jp2=newJPanel();jp3=newJPanel();//创建标签jlb1=newJLabel("用户名");jlb2=newJLabel("密码");//创建按钮jb1=newJButton("登录");jb2=newJButton("重置");//创建文本框jtf=newJTextField(10);//创建密码框jpf=newJPasswordField(10);//设置布局管理this.setLayout(newGridLayout(3,1));//网格式布局//加入各个组件jp1.add(jlb1);jp1.add(jtf);jp2.add(jlb2);jp2.add(jpf);jp3.add(jb1);jp3.add(jb2);//加入到JFramethis.add(jp1);this.add(jp2);this.add(jp3);//设置窗体this.setTitle("用户登录");//窗体标签this.setSize(300,150);//窗体大小this.setLocationRelativeTo(null);//在屏幕中间显示(居中显示)this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);//退出关闭JFramethis.setVisible(true);//显示窗体//锁定窗体this.setResizable(false);}}

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。