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外文翻译--数据结构.doc

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外文翻译--数据结构.doc

附录附录A外文翻译-原文部分Computerprogrammingdatastructureisanimportanttheoreticalbasisforthedesign,itisnotonlythecorecurriculumofcomputerdisciplines,andhasbecomeapopularelectivecourseotherPolytechnicprofessional,sostudiedthiscoursewellandstudiedcomputerarecloselyrelated.一、theconceptofdatastructureComputerdatastructureisthefoundationofscienceandtechnologyprofessionalclasses,istheessentialcorecurriculum.Allcomputersystemsoftwareandapplicationsoftwaretousevarioustypesofdatastructures.Therefore,ifwewanttomakebetteruseofcomputerstosolvepracticalproblems,onlytoseveralcomputerprogramminglanguagesaredifficulttocopewiththemanycomplexissues.Totheeffectiveuseofcomputers,givefullplaytocomputerperformance,butalsomustlearnandmasterrelevantknowledgeofdatastructure.Asolidfoundationofdatastructureforlearningothercomputerprofessionalcourses,suchasoperatingsystems,translationtheory,databasemanagementsystems,softwareengineering,artificialintelligence,etc.areveryuseful.二、whyshouldlearnfromdatastructureIntheearlydevelopmentofcomputers,theuseofcomputerdesignedprimarilytodealwithterms.Whenweusethecomputertosolveaspecificproblem,thefollowinggeneralneedsthroughseveralstepsthefirstisaspecificproblemofappropriateabstractmathematicalmodels,andthendesignorchooseamathematicalmodelofthealgorithm,thefinalproceduresfordebugging,testing,untiltheyhavetheultimateanswer.SincethentheobjectisINTEGER,REAL,BOOLEAN,theproceduresofthemaindesignersofenergyisfocusedonprogrammingskills,withoutattentiontothedatastructure.Withtheexpansionofcomputerapplicationsanddevelopmentofsoftwareandhardware,theissueofnontermsincreasingimportance.Accordingtostatistics,Nowdealingwiththeissueofnonoccupancyofmorethan90ofthemachinetime.Suchissuesinvolvemorecomplexdatastructure,therelationshipsbetweendataelementsgenerallycannotbedescribedbymathematicalformula.Therefore,thekeytosolvingsuchproblemsisnolongermathematicalanalysisandcalculations,buttodeviseappropriatedatastructure,caneffectivelyaddresstheproblem.Descriptionofthetermsofsuchnonmathematicalmodelisnotamathematicalequation,butsuchastables,trees,suchasmapdatastructure.Therefore,itcanbesaidthatdatastructurecoursesprimarilydesignedtostudytheissueofnonvaluecalculationproceduresasacomputeroperationsandtherelationshipbetweenobjectsandtheiroperatingdisciplines.Thepurposeofthestudyistounderstandthestructureofdataforcomputerprocessingoftheidentityobjecttothepracticalproblemsinvolvedindealingwiththatsubjectatthecomputeroutanddealwiththem.Atthesametime,throughtrainingalgorithmstoimprovethethinkingabilityofstudentsthroughproceduresdesignedtopromotestudentskillsintegratedapplicationsandprofessionalqualities.三、theconceptsandterminologySystematicstudyofknowledgeinthedatastructurebeforesomeofthebasicconceptsandterminologytogiveaprecisemeaning.DataDataistheinformationcarrier,itcouldbecomputeridentification,storageandprocessing.Itisthecomputerprocessingofrawmaterials,avarietyofdataprocessingapplications.Computerscience,computerprocessingisthesocalleddataobjects,whichcanbenumericaldatacanbenonnumericaldata.Numericaldataareinteger,theactualnumberorplural,mainlyforengineeringcomputing,scientificcomputingandcommercialprocessingNonnumericaldata,includingcharacters,text,graphics,images,voiceandsoon.DataelementsDataElementisthebasicunitofdata.Indifferentconditions,dataelementscanbecalledelements,nodes,thepeak,recording.Forexample,studentsinformationretrievalsystemtableinformation,arecordhigh,8Queensissueofastatetree,teachingprogrammingissuessuchasapeak,knownasadataelement.Sometimes,adatafromanumberofdataelementsDataItem,forexample,thestudentinformationmanagementsystemstudentseachdataelementtableisastudentrecord.Itincludesstudentsoftheschool,name,sex,nationality,dateofbirth,performancedataitems.Thesedataitemscanbedividedintotwotypesonecalledearlysuchasstudentgender,origin,etc.,thesedatawerenolongerdividedindataprocessing,thesmallestunitsAnothercalledportfolio,theperformanceofstudentswho,itcanbedividedintomathematics,physics,chemistryandothersmalleritems.Normally,inaddressingthequestionofthepracticalapplicationofeachstudentisrecordedasabasicunitforavisitandtreatment.DataobjectsDataObjectordataelementtypeDataElementClassisthenatureofthedataelementswiththesamepool.Inaspecificissue,thedataelementshavethesamenaturenotnecessarilyequalvalueelements,belongingtothesamedataobjectsdataelementtype,thedataelementisanexampleofsuchdataelements.Forexample,trafficinformationsystemsinthetransportationnetwork,isaculminationofallthedataelementscategory,peakaandBeachrepresentanurbanmiddleisthedataelementsofthetwotypesofexamplesofthevalueoftheirdataelementsaandBrespectively.DatastructureDataStructurereferstothemutualrelationshipthatexistsbetweenoneormoredataelementstogether.Inanycase,betweendataelementswillnotbeisolatedinbetweenthemexistinonewayoranother,suchastherelationshipbetweenthedataelementstructure.Accordingtothedataelementsoftherelationshipbetweendifferentcharacteristics,usuallyhavethefollowingfourbasiccategoriesofthestructure1assemblystructures.Intheassemblystructure,therelationshipbetweendataelementsisbelongingtothesamepool.Assemblyelementsrelationsisaveryloosestructure.2linearstructures.Thestructureofthedataelementsexistbetweenonetoonerelationship.3treestructure.Thestructureofthedataelementsexistbetweenhierarchicalrelationship.4graphicsstructure.ThestructureofthedataelementsoftherelationshipthatexistedbetweenDuoduiduo,graphicsstructurealsoknownasnetworkstructure.CBuilderprogrammingexperience一、DatabaseprogrammingAndtheuseofDelphi,BorlandCBuilderBDEBorlandDatabaseEnginedatabaseinterface,inparticularitsuseBDEAdministratorunifiedmanagementdatabasealias,thedatabaseoperationhasnothingtodowiththelocationofthedatabasedocuments,thusenablingdatabasedevelopmenteasieroperation.ButinadatabaseapplicationproceduresatthesametimewehavetoreleaseBDE,thedatabaseforsomesimpleproceduresmayBDEthanourowndesignproceduresbig,butastheuseofBDEInstallShield,adddatabasealiasislikelyallocationfailure.Therefore,wecanusethefollowingmethodsstillinthedesignstageprocedureusingBDEaliasmanagementdatabasefordebugging,butinproceduressubstantiallyasinthemainChuangtiOnCreateeventprocessingfunctiontoTablecomponentsDatabaseNameattributes,suchastheuseofsimilarphrasesasfollowsTable1DatabaseNameExtractFilePathApplicationExeNameOrTable1DatabaseNameExtractFilePathApplicationExeNameDBThus,noimpactonthedebuggingphase,willbeissuediftheapplicationproceduresTable1documentontheuseofdatabasesortheircurrentcatalogueDBvirus,databaseprocedurescanbenormaloperation.YoucanevenbeadatabasetocataloguethedocumentsintheformofcharacterstringRegisterinstalledintheinstallationprocess,thentheprocedureintheacquisitionofsubstantiallyfromthecatalogueofpayrolls,FuzhiDatabaseNameattributetobe.Anyway,youdonotneedtoinstallrelativelylargeBDEforcedusers.二、theRegistryvisitAsinthedesignprocessweoftenrequired9x/NTWindowsRegistryinformationvisit,suchasretrievalofinformationprocedures,preservationofinformation.Registerwriteasubroutinetovisitnecessary.WhentheRegistertovisit,thelibrarywillbedirectlyavailablewithoutalwayssomeduplicationoperation.ThefollowingcanbeusedtoaccesscosmeticLicheng,thecharacterstringtypeJianzhi,andtheretrievaloffailuretoreturndefaultvalueDefault.includeintReadIntFromRegHKEYRoot,AnsiStringKey,AnsiStringKeyName,intDefault{intKeyValueTRegistryRegistrynewTRegistryRegistryRootKeyRootRegistryOpenKeyKey,falsetry{KeyValueRegistryReadIntegerKeyName}catch...{KeyValueDefault}deleteRegistryreturnKeyValue}voidSaveIntToRegHKEYRoot,AnsiStringKey,AnsiStringKeyName,intKeyValue{TRegistryRegistrynewTRegistryRegistryRootKeyRootRegistryOpenKeyKey,trueRegistryWriteIntegerKeyName,KeyValuedeleteRegistry}charReadStringFromRegHKEYRoot,AnsiStringKey,AnsiStringKeyName,charDefault{AnsiStringKeyValueTRegistryRegistrynewTRegistryRegistryRootKeyRootRegistryOpenKeyKey,falsetry{KeyValueRegistryReadStringKeyName}catch...{KeyValueAnsiStringDefault}deleteRegistry

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