Visual Basic 語言與算法中英文對照外文翻譯文獻

中英文資料中英文資料外文翻譯譯文：

VisualBasic語言與算法1991VisualBasic(VBVB2008Beta2(VB9)中文版。Visual意即可視的、可見的，指的是開發(fā)像windows操作系統(tǒng)的圖形用戶界面（GraphicUserInterface,GUI）外觀和位置，只要把預先建立好的對象拖放到屏幕上相應的位置即可。Basic實際上是一個短語的縮寫，這個短語就是Beginnersall_purposesymbolicinstructioncode，其中文意思為“初始者通用符號指令代碼語言”。VisualBasic版適用于普通學習者及大多數(shù)使用VisualBasicWindows但是；專業(yè)版適用于計算機專業(yè)開發(fā)人員，包括了學習版的全部內(nèi)容功能以及InternetVisualBasic1VisualBasicMicrosoftVisualBasicVB)Windows度、最簡捷的工具之一。不論是初學者還是專業(yè)開發(fā)人員，VB都為他們提供了一整套的工具，可以輕松方便的開發(fā)應用程序。因此，VB一直被作為大多數(shù)電腦初學者的首選入門編程語言。中英文資料“Visual”指的是采用可視化的開發(fā)圖形用戶界面（GUI）的方法，一般不需要應位置即可方便圖形設計圖形用戶界面；“Basic”指的是BASICVBBAISCVB是Microsoft的一種通用程序設計語言，它包括在MicrosoftExcelMicrosoftAccessWindowsVBAVBVBScriptVBVBMicrosoftSQLServerActiveX(TM)技術，VBMicrosoftWordMicrosoftExcelWindowsVB用戶最終創(chuàng)建的程序是一個真正的.EXE文件，可以自由發(fā)布。VBWindowsWindowsNT不同的需要來選擇不同的版本。第2節(jié)集成開發(fā)環(huán)境VBIDE，由多個部分組成，包含了標題欄、菜單欄、工具欄、控布局等。覆蓋了開發(fā)應用程序的設計、編輯、編譯和調(diào)試等所有功能。VBVB如圖所示的集成開發(fā)環(huán)境界面。VisualBasic集成開發(fā)環(huán)境VB3VisualBasicBasic是最常被用來做入門使用的高級語言。它的全名是Beginner’sAll-purposeSumbolicInstructionCode，簡稱為BASIC。顧名思義，Basic就是中英文資料BasicBasic（Quick使得它也可以用來開發(fā)較大型的程序。VBVB語法：語句定義符[語句體]VBVB序。界面+程序就能解決某個應用問題。VBVBEx-Hello]碼編輯器”窗口編寫的代碼?！按a編輯器”窗口第4節(jié)用VisualBasic開發(fā)應用程序使用VB編程，一般先設計應用程序的外觀，然后再分別編寫各對象事件的程序代碼或其他處理程序，編程的工作要輕松多。創(chuàng)建應用程序的步驟如下：創(chuàng)建應用程序界面VBWINDOWS之間的信息交流的需要，來確定需要那些對象，規(guī)劃界面的布局。設計界面上各個對象的屬性根據(jù)規(guī)劃的界面要求設置各個對象的屬性，比如對象的外貌、名稱、顏色、大小等。大多數(shù)屬性取值既可以在設計時通過屬性窗口來設置，也可以在程序代碼中通過編程在程序運行時設置修改。編程對象響應的程序代碼界面僅僅決定了程序的外觀，設計完界面后就要通過“代碼編輯器”窗口來添加代碼，實現(xiàn)一些在接受外界信息后作出響應、信息處理等任務，添加中英文資料碼編輯窗口所示“代碼編輯器”窗口保存工程一個VB程序就是一個工程，在設計一個應用程序時，系統(tǒng)會建立一個擴展名為.vbp為.frm.frx（文件）同時被裝載。行和調(diào)試程序通過“運行”菜單中的選項來運行程序，當出現(xiàn)錯誤時，VB系統(tǒng)可以提供信息提示也可通過“調(diào)試”和“運行”菜單來查找和排除錯誤。生成可執(zhí)行程序VB1.exe”生成可執(zhí)行程序（.exe文件，此后即可直接執(zhí)行該文件。在生成可+執(zhí)行程序后，windows環(huán)境下安裝后獨立運行VB的數(shù)據(jù)庫編程方面按其難易程度可分為三類(由易到難);●使用數(shù)據(jù)庫控制項和綁定控制項●使用數(shù)據(jù)庫對象變量進行編程●直接調(diào)用ODBC2.0API在使用VB進行數(shù)據(jù)庫編程時,通常,會首先選擇三種基本方法之一來進行數(shù)據(jù)庫應用程序的方案設計,現(xiàn)在就將以上三種設計方法的適應范圍及其優(yōu)缺點進行一個比較。使用數(shù)據(jù)庫控制項和綁定控制項優(yōu)點它是三種方法中編碼量最小的不必了解CDBC2.0API的細節(jié)允許使用標準的和第三方廠商制訂的控制項簡化了錯誤處理支持所有的動態(tài)集方法及屬性中英文資料缺點不能存取快照對象(snapshop)對象或表格對象(都屬于記錄集對象)不能存取數(shù)據(jù)庫集合,比如表定義(TableDefs)字段(Fieds),索引(Indexes)及查詢定義(QueryDefs)ODBC2.0不能進行真正的事務處理有限的錯誤診斷功能應用對中小規(guī)模的數(shù)據(jù)庫表(通常少于一千條記錄)只進行簡章的瀏覽操作基本SQL查詢所對應的結(jié)果集長度有限(通常結(jié)果集的記錄數(shù)小于一百,這些記錄從一個或兩個長度有限的表中檢索出來)應用程序的數(shù)據(jù)輸入/輸出項較少(通常只涉及一個或兩個長度有限的表、并且表中的字段數(shù)在10個左右且不具有關系完整性限制使用數(shù)據(jù)庫對象變量進行編程優(yōu)點可以在程序中存取ODBC2.0的管理函數(shù)可以控制多種記錄集類型:Dynaset、SnapshopTable可以存取存儲過程和查詢動作TableDefs、Fields、IndexesQueryDefs具有真正的事務處理能力,包括啟動事務(Begintrans)、提交事務(CommitTrans)及回滾事務(Rollback)缺點比使用數(shù)據(jù)控制項的方法編碼量較大只能進行間接的錯誤處理和錯誤恢復對每個數(shù)據(jù)庫操作沒有細粒度的控制對結(jié)果集和包含結(jié)果集的內(nèi)豐資源的操作受到限制同直接使用ODBC2.0API函數(shù)的方法相比性能較低應用應用程序需要在執(zhí)行期間動態(tài)地建立表、字段及索引.應用程序涉及同步更新幾張表(但在邏輯上保持一致性)的復雜事務Dynaset(FORMS)SnapshotsTables,中英文資料這里是設計要考慮的關鍵應用程序的表非常大,多于1000條記錄應用程序具有復雜的數(shù)據(jù)輸入/輸出項,它涉及許多內(nèi)部相關的字段并且包括數(shù)據(jù)庫參照完整性或一致性規(guī)則應用程序需要執(zhí)行一些額外的操作和對結(jié)果集的查詢后處理,尤其是需要很高的數(shù)據(jù)格式化顯示ODBC應用程序需要在執(zhí)行期間“顯示”數(shù)據(jù)庫的基本結(jié)構(gòu)應用程序需要使用復雜的多碼索引方式來檢索或更新記錄ODBC2.0API優(yōu)點可以直接參與結(jié)果集的開發(fā)、管理及規(guī)范化對結(jié)果集游標提供了更多的控制,并且提供了更多的游標類型和執(zhí)行動作能夠確定ODBC驅(qū)動程序及SQL的一致性級別可以更好地控制Windows的執(zhí)行調(diào)度及資源利用其他方面同其他方法差不多,因此這種方法很可能具有最好的性能缺點較其他兩種方法需要大量的代碼代碼復雜并且要求程序員具有編制API調(diào)用的經(jīng)驗VisualBasic現(xiàn)的錯誤所造成的后果會非常嚴重應用/都能夠準確地解決可能出現(xiàn)的系統(tǒng)錯誤和失敗應用程序強調(diào)資源使用,這里如何對內(nèi)存、網(wǎng)絡服務器資源進行直接控制是首要的考慮因素應用程序使用超大規(guī)模數(shù)據(jù)庫,例如數(shù)據(jù)庫表可能包含幾萬或幾十萬條記錄中英文資料碼、測試、調(diào)試、計時等階段。對算法的學習包括五個方面的內(nèi)容：①設計算法。算法設計工作是不可能完全自動化的，應學習了解已經(jīng)被實踐證明是有用的一些基本的算法設計方法，這些基本的設計方法不僅適用于計算機科學，而且適用于電氣工程、運籌學等領域。②表示算法。描述算法的方法有多種形式，例如自然語言和算法語言，各自有適用的環(huán)境和特點。④分析算法。算法分析是對一個算法需要多少計算時間和存儲空間作定量的分的不同算法的有效性作出比較。⑤驗證算法。用計算機語言描述的算法是否可計算、有效合理，須對程序進行測試，測試程序的工作由調(diào)試和作時空分布圖組成。而算法具有一定的特性，它包括：①確定性。算法的每一種運算必須有確定的意義，該種運算應執(zhí)行何種動作應無二義性，目的明確。②能行性。要求算法中有待實現(xiàn)的運算都是基本的，每種運算至少在原理上能由人用紙和筆在有限的時間內(nèi)完成。③輸入。一個算法有0個或多個輸入，在算法運算開始之前給出算法所需數(shù)據(jù)的初值，這些輸入取自特定的對象集合。④輸出。作為算法運算的結(jié)果，一個算法產(chǎn)生一個或多個輸出，輸出是同輸入中英文資料有某種特定關系的量。⑤有窮性。一個算法總是在執(zhí)行了有窮步的運算后終止，即該算法是可達的。算過程并不停止，而是處于等待狀態(tài)。意到這一點。中英文資料原文：VisualBasiclanguageandarithmeticTheUnitedStateslaunchedtheMicrosoftVisualBasic(maybereferredtoisthelatestversionofthecurrentVB2008Beta2(VB9)Chineseversion.Visualmeaningthevisual,visible,referringtothedevelopmentofoperatingsystemslikewindowsgraphicaluserinterface(GraphicUserInterface,GUI)method,itdoesnotneedtopreparealargenumbercodetodescribetheappearanceoftheinterfaceelementsandlocation,aslongasthepre-Theestablishmentofgooddraganddropobjectsonthescreencorrespondingtothelocation.Basicisactuallyanabbreviationofthephrase;thisphraseisBeginnersall-purposesymbolicinstructioncode,theChinesemeaning"totheinitialdirectiveGMsymbolcodelanguage."VisualBasiclearning,ProfessionalEditionandEnterpriseEditionversionstomeetthedifferentneedsofthedevelopment.StudyandapplytotheordinaryversionofthemajorityoflearnersandtheuseofVisualBasicdevelopmentofthegeneralstaffofWindowsapplications,but;professionalversioncomputerprofessionaldevelopmentofstaff,includingthestudyoffunctionalversionofthefullcontentcontrolandInternetdevelopmenttoolssuchasadvancedfeatures,Enterprisecontainnotonlyalltheprofessionalofthecontent,thereareautomatedtoolssuchasComponentManager,professionalprogrammerstomakethedevelopmentofapowerfulgroupessenceofdistributedapplications.VisualBasicSection1thesummaryofVisualBasicMicrosoftVisualBasic,(abbreviateVB)astoolthemostofapplicationprogramoneofunderWindowsoperatingplatform.Nomatterbeginnerorprofessionaldeveloper,VBhasallofferedawholesetoftoolstothem,中英文資料Developmentapplicationprogramthatitcanberelaxedandconvenient.SoVBasmostcomputerfirst-selectedtheABCofprogramminglanguageofbeginner."Visual"meanmethodtoadoptvisualuserofdevelopmentfigureinterface(GUI),needandwritealargenumberofcodegoanddescribeinterfaceappearanceandpositionofelementseldom,Towandshowcontrollingpartthatneedcorrespondingpositiontogetscreencanhelpfiguredesigninterface,useroffigure,;"Basic"meansBASIClanguage,becauseVBisdevelopedonthebasisofalreadyexistingBAISClanguage.VBisakindofprogramminglanguageincommonuseofMicrosoft,It,includingVBAofthenumerousWindowsapplicationsoftwareuseVBlanguageinMicrosoftExcel,MicrosoftAccessed.,Foruserstocarryonthesecondarydevelopment;MakewebpageusemoreVBScriptscriptlanguagesubcollectionofVBtoopresent.UtilizedataofVBvisitcharacteristicusercanestablishthedatabasemostdatabaseformsincludingMicrosoftSQLServerandotherenterprisesdatabaseWiththeapplicationprogramoffront,andadjustableserviceendpart.UtilizeActiveX(TM)technology,VBcanusewordprocessor,electronicdatalistheWindowsfunctionthatapplicationprogramoffersextremely,ExcelofMicrosoft,,WordofMicrosoft,,EvencanusebyVBspecialtyeditionorenterpriseapplicationprogramandtargetthateditionestablishdirectly.Theprocedurethatusersestablishedfinallyisareal.EXEfile,canissuefreely.VBofferstudyedition,thespecialtyeditionandenterpriseedition,usetosatisfiedwithdifferentdevelopmentdemands.StudyeditionmakeprogrammingpersonneldevelopWindowsandWindowsapplicationprogramofNTveryeasily.Thespecialtyeditionhasofferedthedevelopinginstrumentwithcompletefunctiontoprogrammingpersonnelofthespecialty,Includestudyingallfunctionsofeditioninthespecialtyedition.Enterpriseeditionallowprofessionalpersonneltoestablishstrongdistributedapplicationprogramintheformofgroup.Itincludesallcharacteristicsofthespecialtyedition.Socanchoosedifferenteditionsaccordingtodifferentneeds.中英文資料Section2integrateddevelopmentenvironmentsIntegratedenvironmentofVBcallIDE,madeupofalotofparts,includetitleboard,menufence,toolfence,controllingpartcase,Andwindowwindow,engineeringmanagementdevicewindow,attributewindow,codeandwindowbodyoverallarrangementwindowbodyoverallarrangement,etc.ofdesigningetc..Havecoveredallfunctions,suchasdesignwhichdevelopstheapplicationprogram,editting,compilinganddebugging,etc..InVB,theapplicationprogramcallstheprojecttoo.WhenstartVBandopenanewprojectforthefirsttime,canseeandpursueintegrateddevelopmentenvironmentinterfacethatshow.VisualBasicIntegrateddevelopmentenvironmentVBcomeandorganizedevelopmentofapplicationprogramthroughproject,useprojectcomeandmanageandformfilesofapplicationprogram.Oneusestheenvironmenttomakeupbyseveralwindowbodies,standardmodulegenerally.Thesystemmanagesprojectthroughtheprojectmenu,forinstanceaddthewindowbody,quote.Systemallowturnonandmanagealotofprojectsbesides.Section3VisualBasiclanguagebriefintroductionsBasicuseanddotheelementaryhigh-levellanguagethatusedoftenmost.ItsfullnameisBeginner'sAll-purposeSymbolicInstructionCode,abbreviateasBASIC.Asitsnamesuggests,Basiconespeciallyforlanguagethatbeginnerdesign,becauseiteasytolearneasytoknow,Sothebodyispopular.Basiclanguagetobelongtoandsolvetranslatingtype,socancarryoutlinebyline,Soitcanseetheresultcarriedoutatonce,thisisaveryconvenientdesignforbeginner.Butithaveconceptofstructureeither,onethatisproceduremaintainandmanagementhaveasmuchasotherlanguageproblems.Butback-endBasiccorrectshortcomingoftheabove(suchasQuickBasic),makeitmayusedforanddevelopthelarge-scalerproceduretoo.Thelanguageisthebasiccomposition,whichformsVBprocedure.VBhasstipulatedtheformofsentencesandfunction.Grammar:中英文資料Thesentencedefinesincantations[Sentencebody]Sentencedefineagreewithandusedinfixedfunctionofsentence,bodyappointconcretecontentorwantconcreteoperationthatcarryoutofsentence.AllsetofsentenceVBlanguage,carryonwithVBsentenceorganicassociationfinishacertainspecificfunctiontheprocedure.Interface+procedurecansolveacertainapplicationproblem.VBapplicationprogramcodewindowwritein"codeeditingmachine"generally."editingmachineofcode"islikethewordprocessingsoftwareofaofheightspecialization,therearemanyeasiesfunctionofwritingVBcode,Pursuetoshow[ExampleEx-Hello]In"codeeditingmachine"codethatwindowwritten.“Editingmachineofcode”windowSection4developtheapplicationprogramwithVisualBasicUseVBprogramming,designappearanceofapplicationprogramfirstgenerally,writeeverytargetprocedurecodeorothertreatmentprocedureofrespectively,Workofprogrammingshouldbelightmore.Theprocedureofestablishingtheapplicationprogramisasfollows:EstablishapplicationprograminterfaceTheinterfaceisthemutualbridgeofuserandprocedure,Generallyofwindowbodyandvisionframeofthebutton,menu,textframeset.withstandardWINDOWSinterfaceofapplicationprogramthatVBestablish.Requireaccordingtofunctionofprocedureanduserandneedofinformationinterchangeofprocedure,Cometoconfirmthatneedthosetargets,plantheoverallarrangementoftheinterface.DesignbyeachattributesoftargetininterfaceDemandandsetupeachattributeoftargetsuchasappearance,name,,sizeoftargeted.accordingtointerfaceofplanning.Mostattributepersonwhofetchcansetupthroughtheattributewindowwhendesignalready,Toocansetuprevisingwhenoperatinginprocedureprogramminginprocedurecode.Havethetargetsrespondprogrammingbyprocedurecode中英文資料RespondprocedurecodeofprogrammingtargetInterfacedetermineappearanceofprocedureonly,designwindowaddcodesthrough"codeeditingmachine"soonaftertheinterface,Realizesomemakethetasks,suchasresponding,informationprocessing,etc.afteracceptingexternalmessage,Addcode,realizesomeresponse,informationprocessingthatmakeafteracceptingexternalinformationtask,Aseditor'swindowofcodepursuedshowsaddcodes“codeeditingmachine”windowKeepprojectOneVBprocedureoneproject,atthetimeofdesigningaapplicationprogram,systemwillsetuponebeexpandedandcalled.Projectfileofvbp,fileincludeallrelevantinformationoffilethatprojectsetupthis,Keepprojectkeepassociateddocumentsofprojectthisatthesametime.Forexamplethewindowbodyproducedwhendesigninterfacesiskeptandbeingexpandedandbeingcalled.Frmsum.Inthewindowbodyoffoxfire.Atthetimeofopeningaproject(file),thisprojectrelevantfilesloadatthesametime.OperateanddebuggedbyprocedureOperatetheprocedurethoroughpinoperate"selectinginthemenu,whenthemistakeappears,VBsystemcanofferinformationpromptcanlookedforandgetridofthemistakethoroughpindebug"withinoperate"menustoo.CanproducebyexecutiveprogramFormakeprocedurecanbreakawayfromVBenvironment,ordertobecomelifethrough"file""producingproject1.exe"ofmenubutexecutive(eyeful),Cancarryoutthisfiledirectlyafterthis.Inproduce,+executiveprogram,andthenthroughinstallguidebaleallassociateddocuments,Canrunindependentlyafterinstallationundertheenvironmentofwindows9x/2000asasoftwareproduct.Incomputersystem'sanysoftware,isbytheeverylargeorsmalleachkindofsoftwareconstituentconstitution,deferstothespecificalgorithmtorealizerespectively,thealgorithmqualitydirectdecisionrealizesthesoftwareperformancefitandunfitquality.Designsthealgorithmwithany中英文資料method,whatresourcesdesignsthealgorithmtoneed,requireshowmanyrunningtime,howmanystoragespace,howtodetermineanalgorithmthequality,whenrealizesasoftware,ismustgivetosolve.Incomputersystem'soperatingsystem,thelanguagecompilingsystem,thedatabasemanagementsystemaswellasinvariouscomputerapplicationsystem'ssoftware,mustuseeachoneconcretealgorithmtorealize.Therefore,thealgorithmdesignandtheanalysisarethecomputerscienceandatechnicalcorequestion.Thealgorithmistheproblem-solvingstep,wemaydefinethealgorithmChengJieadeterminationclassquestiontherandomonespecialmethod.thecomputerscience,thealgorithmneedstousethecomputeralgorithmiclanguagetodescribe,thealgorithmrepresentswiththecomputersolvesakindofquestionprecisely,theeffectivemethod.Thealgorithmconstructiondata=procedure,solvesonetoassignmaycalculateorthesolvablequestion,thedifferentpersonmaycompilethedifferentprocedure,solvestheidenticalproblem,herehastwoproblems:First,withcomputationalmethodcloserelatedalgorithmquestion;Second,programmingtechnicalquestion.Betweenthealgorithmandtheprocedurehasthecloserelationship.Thealgorithmisgrouphasthepoorrule,theyhadstipulatedsolvessomespecifictypequestionaseriesofoperations,istotheproblemsolvingplanaccurateandthecompletedescription.Formulatesanalgorithm,generallymustpassstagesandsoondesign,confirmation,analysis,code,test,debugging,time.Toalgorithmstudyincludingfiveaspectcontents:①Designalgorithm.Thealgorithmdesignworkisimpossiblecompletelytheautomation,shouldstudytheunderstandingalreadybythepracticetoprovethatwastheusefulsomebasicalgorithmdesignmethod,thesebasicdesignmethodwasnotonlysuitableforthecomputerscience,moreoverwassuitablefordomainsandsoonelectricalengineering,operationsresearch;②Expressesthealgorithm.Thedescriptionalgorithm'smethodhaskindsofforms,forexamplethenaturallanguageandthealgorithmiclanguage,havethesuitableenvironmentandthecharacteristicrespectively;③Confirmsthealgorithm.Thealgorithmconfirmedthegoaliscausesthe中英文資料peopletobelievefirmlythatthisalgorithmcanworkunmistakablycorrectly,namelythisalgorithmhasthecircularity.Thecorrectalgorithmdescribeswiththecomputeralgorithmiclanguage,constitutesthecomputerprogram,thecomputerprogrammovesonthecomputer,obtainsthealgorithmoperationresult;④Parsingalgorithm.Thealgorithmicanalysisisrequireshowmanycomputingtimeandthestoragespacetoanalgorithmmakesthequotatheanalysis.Theparsingalgorithmmayforecastthatwhatenvironmentthisalgorithmdoessuitinmoveseffectively,tosolvestheidenticalquestiondifferentalgorithmvaliditytomakethecomparison;⑤Confirmationalgorithm.Withmachinelanguagedescriptionalgorithmwhethercancalculateeffectively,reasonable,mustcarryonthetesttotheprocedure,thetestorderworkandmakesthespaceandtimedistributionbythedebuggingtobecomposed.Butthealgorithmhascertaincharacteristic,itincludes:①Determinism.Algorithmeachkindofoperationmusthavedeterminationsignificance,thiskindofoperationshouldcarryoutwhatofmovementshouldnottohavetheambiguity,thegoalisclear;②Effectiveness.Requeststheoperationwhichinthealgorithmwaitsrealizingisbasic,eachkindofoperationcanatleastcompletesintheprinciplebythehumanwiththepaperandthepeninthelimitedtime;③Input.Analgorithmhas0orthemanyinputs,beforethealgorithmoperationstartsgivesthealgorithmtoneedthedatathestartingvalue,inputsarefromthespecificobjectset;④Output.Doesforthealgorithmoperationresult,analgorithmhasormanyoutputs,theoutputhassomekindofspecificrelationalquantitywiththeinput;⑤Haspoor.Analgorithmalwaysaftercarryingouthadthepoorstepoperationhasterminated,namelythisalgorithmwasmayreach.Satisfiesafirstfourcharacteristicgroupofrulenottobeabletobecalledthealgorithm,canonlybecalledthecomputation