ActionScript 3.0概述 毕业论文外文翻译

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1、信息工程学院Flash游戏制作——《雷电游戏》英文原文ActionScript3.0ActionScript3.0isapowerful,object-orientedprogramminglanguagethatsignifiesanimportantstepintheevolutionofthecapabilitiesoftheFlashPlayerruntime.ThemotivationdrivingActionScript3.0istocreatealanguageideallysuitedforrapidlybuildingrichInternetapplicati

2、ons,whichhavebecomeanessentialpartofthewebexperience.EarlierversionsofActionScriptofferedthepowerandflexibilityrequiredforcreatingtrulyengagingonlineexperiences.ActionScript3.0nowfurtheradvancesthelanguage,providingsuperbperformanceandeaseofdevelopmenttofacilitatehighlycomplexapplications,la

3、rgedatasets,andobject-oriented,reusablecodebases.WithActionScript3.0,developerscanachieveexcellentproductivityandperformancewithcontentandapplicationsthattargetFlashPlayer.ActionScript3.0isbasedonECMAScript,theinternationalstandardizedprogramminglanguageforscripting.ActionScript3.0iscomplian

4、twiththeECMAScriptLanguageSpecification,ThirdEdition.ItalsocontainsfunctionalitybasedonongoingworkonECMAScriptEdition4,occurringwithintheECMAstandardsbody.ActionScriptisexecutedbytheActionScriptVirtualMachine(AVM)builtintotheFlashPlayer.AVM1,thevirtualmachineusedtoexecutelegacyActionScriptco

5、de,powersFlashPlayertodayandmakespossibleawiderangeofinteractivemediaandrichInternetapplications.However,developershavestartedtopushAVM1toitslimits;theirprojectrequirementsnowdemandamajorbreakthrough.ActionScript3.0introducesanewhighlyoptimizedActionScriptVirtualMachine,AVM2,whichdramaticall

6、yexceedstheperformancepossiblewithAVM1.Asaresult,ActionScript3.0codeexecutesupto10timesfasterthanlegacyActionScriptcode.ThenewAVM2virtualmachineisavailableinFlashPlayer9,andwillbetheprimaryvirtualmachineforActionScriptexecutiongoingforward.TheolderAVM1willcontinuetobesupportedbyFlashPlayerfo

7、rbackwardscompatibilitywithexistingandlegacycontent.TherearenumerousproductsthatgeneratecontentandapplicationstargetedattheFlashPlayerruntime.OftentheseproductsincorporatesupportforActionScripttoaddinteractivityandbehaviortotheiroutput.Inthe第7页共7页信