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ID:9195976
大小:231.50 KB
页数:8页
时间:2018-04-21
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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.ThemotivationdrivingActionScript3.0istocreatealanguageideallysuitedforrapidlybuildingrichInternetappl
2、ications,whichhavebecomeanessentialpartofthewebexperience.EarlierversionsofActionScriptofferedthepowerandflexibilityrequiredforcreatingtrulyengagingonlineexperiences.ActionScript3.0nowfurtheradvancesthelanguage,providingsuperbperformanceandeaseofdevelopmenttofacilitatehighlycomplexappli
3、cations,largedatasets,andobject-oriented,reusablecodebases.WithActionScript3.0,developerscanachieveexcellentproductivityandperformancewithcontentandapplicationsthattargetFlashPlayer.ActionScript3.0isbasedonECMAScript,theinternationalstandardizedprogramminglanguageforscripting.ActionScri
4、pt3.0iscompliantwiththeECMAScriptLanguageSpecification,ThirdEdition.ItalsocontainsfunctionalitybasedonongoingworkonECMAScriptEdition4,occurringwithintheECMAstandardsbody.ActionScriptisexecutedbytheActionScriptVirtualMachine(AVM)builtintotheFlashPlayer.AVM1,thevirtualmachineusedtoexecute
5、legacyActionScriptcode,powersFlashPlayertodayandmakespossibleawiderangeofinteractivemediaandrichInternetapplications.However,developershavestartedtopushAVM1toitslimits;theirprojectrequirementsnowdemandamajorbreakthrough.ActionScript3.0introducesanewhighlyoptimizedActionScriptVirtualMach
6、ine,AVM2,whichdramaticallyexceedstheperformancepossiblewithAVM1.Asaresult,ActionScript3.0codeexecutesupto10timesfasterthanlegacyActionScriptcode.ThenewAVM2virtualmachineisavailableinFlashPlayer9,andwillbetheprimaryvirtualmachineforActionScriptexecutiongoingforward.TheolderAVM1willcontin
7、uetobesupportedbyFlashPlayerforbackwardscompatibilitywithexistingandlegacycontent.TherearenumerousproductsthatgeneratecontentandapplicationstargetedattheFlashPlayerruntime.OftentheseproductsincorporatesupportforActionScripttoaddinteractivityandbehaviortotheiroutput.Inthe第8页共8页信
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