Apache License（version 2.0）

ApacheLicenseVersion2.0,January2004http://www.apache.org/licenses/TERMSANDCONDITIONSFORUSE,REPRODUCTION,ANDDISTRIBUTION1.Definitions."License"shallmeanthetermsandconditionsforuse,reproduction,anddistributionasdefinedbySections1through9ofthisdocument."Licensor"shallmeanthecopyrightownerorentityauthorizedbythecopyrightownerthatisgrantingtheLicense."LegalEntity"shallmeantheunionoftheactingentityandallotherentitiesthatcontrol,arecontrolledby,orareundercommoncontrolwiththatentity.Forthepurposesofthisdefinition,"control"means(i)thepower,directorindirect,tocausethedirectionormanagementofsuchentity,whetherbycontractorotherwise,or(ii)ownershipoffiftypercent(50%)ormoreoftheoutstandingshares,or(iii)beneficialownershipofsuchentity."You"(or"Your")shallmeananindividualorLegalEntityexercisingpermissionsgrantedbythisLicense."Source"formshallmeanthepreferredformformakingmodifications,includingbutnotlimitedtosoftwaresourcecode,documentationsource,andconfigurationfiles."Object"formshallmeananyformresultingfrommechanicaltransformationortranslationofaSourceform,includingbutnotlimitedtocompiledobjectcode,generateddocumentation,andconversionstoothermediatypes."Work"shallmeantheworkofauthorship,whetherinSourceorObjectform,madeavailableundertheLicense,asindicatedbyacopyrightnoticethatisincludedinorattachedtothework(anexampleisprovidedintheAppendixbelow)."DerivativeWorks"shallmeananywork,whetherinSourceorObjectform,thatisbasedon(orderivedfrom)theWorkandforwhichtheeditorialrevisions,annotations,elaborations,orothermodificationsrepresent,asawhole,anoriginalworkofauthorship.ForthepurposesofthisLicense,DerivativeWorksshallnotincludeworksthatremainseparablefrom,ormerelylink(orbindbyname)totheinterfacesof,theWorkandDerivativeWorksthereof."Contribution"shallmeananyworkofauthorship,includingtheoriginalversionoftheWorkandanymodificationsoradditionstothatWorkorDerivativeWorksthereof,thatisintentionallysubmittedtoLicensorforinclusionintheWorkbythecopyrightownerorbyanindividualorLegalEntityauthorizedtosubmitonbehalfofthecopyrightowner.Forthepurposesofthisdefinition,"submitted"meansanyformofelectronic,verbal,orwrittencommunicationsenttotheLicensororitsrepresentatives,includingbutnotlimitedtocommunicationonelectronicmailinglists,sourcecodecontrolsystems,andissuetrackingsystemsthataremanagedby,oronbehalfof,theLicensorforthepurposeofdiscussingandimprovingtheWork,butexcludingcommunicationthatisconspicuouslymarkedorotherwisedesignatedinwritingbythecopyrightowneras"NotaContribution.""Contributor"shallmeanLicensorandanyindividualorLegalEntityonbehalfofwhomaContributionhasbeenreceivedbyLicensorandsubsequentlyincorporatedwithintheWork.2.GrantofCopyrightLicense.SubjecttothetermsandconditionsofthisLicense,eachContributorherebygrantstoYouaperpetual,worldwide,non-exclusive,no-charge,royalty-free,irrevocablecopyrightlicensetoreproduce,prepareDerivativeWorksof,publiclydisplay,publiclyperform,sublicense,anddistributetheWorkandsuchDerivativeWorksinSourceorObjectform.译文：根据本许可的条款和条件，每个贡献者特此授予您永久的、全球性的、非独占的、免费的、免版税的、不可撤销的版权许可，以复制、准备衍生作品、公开展示、公开表演、分许可，并以“源”或“对象”形式分发“作品”和“衍生作品”。3.GrantofPatentLicense.SubjecttothetermsandconditionsofthisLicense,eachContributorherebygrantstoYouaperpetual,worldwide,non-exclusive,no-charge,royalty-free,irrevocable(exceptasstatedinthissection)patentlicensetomake,havemade,use,offertosell,sell,import,andotherwisetransfertheWork,wheresuchlicenseappliesonlytothosepatentclaimslicensablebysuchContributorthatarenecessarilyinfringedbytheirContribution(s)aloneorbycombinationoftheirContribution(s)withtheWorktowhichsuchContribution(s)wassubmitted.IfYouinstitutepatentlitigationagainstanyentity(includingacross-claimorcounterclaiminalawsuit)allegingthattheWorkoraContributionincorporatedwithintheWorkconstitutesdirectorcontributorypatentinfringement,thenanypatentlicensesgrantedtoYouunderthisLicenseforthatWorkshallterminateasofthedatesuchlitigationisfiled.4.Redistribution.YoumayreproduceanddistributecopiesoftheWorkorDerivativeWorksthereofinanymedium,withorwithoutmodifications,andinSourceorObjectform,providedthatYoumeetthefollowingconditions:1. YoumustgiveanyotherrecipientsoftheWorkorDerivativeWorksacopyofthisLicense;and2. YoumustcauseanymodifiedfilestocarryprominentnoticesstatingthatYouchangedthefiles;and3. Youmustretain,intheSourceformofanyDerivativeWorksthatYoudistribute,allcopyright,patent,trademark,andattributionnoticesfromtheSourceformoftheWork,excludingthosenoticesthatdonotpertaintoanypartoftheDerivativeWorks;and4. IftheWorkincludesa"NOTICE"textfileaspartofitsdistribution,thenanyDerivativeWorksthatYoudistributemustincludeareadablecopyoftheattributionnoticescontainedwithinsuchNOTICEfile,excludingthosenoticesthatdonotpertaintoanypartoftheDerivativeWorks,inatleastoneofthefollowingplaces:withinaNOTICEtextfiledistributedaspartoftheDerivativeWorks;withintheSourceformordocumentation,ifprovidedalongwiththeDerivativeWorks;or,withinadisplaygeneratedbytheDerivativeWorks,ifandwhereversuchthird-partynoticesnormallyappear.ThecontentsoftheNOTICEfileareforinformationalpurposesonlyanddonotmodifytheLicense.YoumayaddYourownattributionnoticeswithinDerivativeWorksthatYoudistribute,alongsideorasanaddendumtotheNOTICEtextfromtheWork,providedthatsuchadditionalattributionnoticescannotbeconstruedasmodifyingtheLicense. YoumayaddYourowncopyrightstatementtoYourmodificationsandmayprovideadditionalordifferentlicensetermsandconditionsforuse,reproduction,ordistributionofYourmodifications,orforanysuchDerivativeWorksasawhole,providedYouruse,reproduction,anddistributionoftheWorkotherwisecomplieswiththeconditionsstatedinthisLicense.5.SubmissionofContributions.UnlessYouexplicitlystateotherwise,anyContributionintentionallysubmittedforinclusionintheWorkbyYoutotheLicensorshallbeunderthetermsandconditionsofthisLicense,withoutanyadditionaltermsorconditions.Notwithstandingtheabove,nothinghereinshallsupersedeormodifythetermsofanyseparatelicenseagreementyoumayhaveexecutedwithLicensorregardingsuchContributions.6.Trademarks.ThisLicensedoesnotgrantpermissiontousethetradenames,trademarks,servicemarks,orproductnamesoftheLicensor,exceptasrequiredforreasonableandcustomaryuseindescribingtheoriginoftheWorkandreproducingthecontentoftheNOTICEfile.7.DisclaimerofWarranty.Unlessrequiredbyapplicablelaworagreedtoinwriting,LicensorprovidestheWork(andeachContributorprovidesitsContributions)onan"ASIS"BASIS,WITHOUTWARRANTIESORCONDITIONSOFANYKIND,eitherexpressorimplied,including,withoutlimitation,anywarrantiesorconditionsofTITLE,NON-INFRINGEMENT,MERCHANTABILITY,orFITNESSFORAPARTICULARPURPOSE.YouaresolelyresponsiblefordeterminingtheappropriatenessofusingorredistributingtheWorkandassumeanyrisksassociatedwithYourexerciseofpermissionsunderthisLicense.8.LimitationofLiability.Innoeventandundernolegaltheory,whetherintort(includingnegligence),contract,orotherwise,unlessrequiredbyapplicablelaw(suchasdeliberateandgrosslynegligentacts)oragreedtoinwriting,shallanyContributorbeliabletoYoufordamages,includinganydirect,indirect,special,incidental,orconsequentialdamagesofanycharacterarisingasaresultofthisLicenseoroutoftheuseorinabilitytousetheWork(includingbutnotlimitedtodamagesforlossofgoodwill,workstoppage,computerfailureormalfunction,oranyandallothercommercialdamagesorlosses),evenifsuchContributorhasbeenadvisedofthepossibilityofsuchdamages.9.AcceptingWarrantyorAdditionalLiability.WhileredistributingtheWorkorDerivativeWorksthereof,Youmaychoosetooffer,andchargeafeefor,acceptanceofsupport,warranty,indemnity,orotherliabilityobligationsand/orrightsconsistentwiththisLicense.However,inacceptingsuchobligations,YoumayactonlyonYourownbehalfandonYoursoleresponsibility,notonbehalfofanyotherContributor,andonlyifYouagreetoindemnify,defend,andholdeachContributorharmlessforanyliabilityincurredby,orclaimsassertedagainst,suchContributorbyreasonofyouracceptinganysuchwarrantyoradditionalliability.ENDOFTERMSANDCONDITIONSAPPENDIX:HOWTOAPPLYTHEAPACHELICENSETOYOURWORKToapplytheApacheLicensetoyourwork,attachthefollowingboilerplatenotice,withthefieldsenclosedbybrackets"[]"replacedwithyourownidentifyinginformation.(Don'tincludethebrackets!)Thetextshouldbeenclosedintheappropriatecommentsyntaxforthefileformat.Wealsorecommendthatafileorclassnameanddescriptionofpurposebeincludedonthesame"printedpage"asthecopyrightnoticeforeasieridentificationwithinthird-partyarchives.Copyright[yyyy][nameofcopyrightowner]LicensedundertheApacheLicense,Version2.0(the"License");youmaynotusethisfileexceptincompliancewiththeLicense.YoumayobtainacopyoftheLicenseathttp://www.apache.org/licenses/LICENSE-2.0Unlessrequiredbyapplicablelaworagreedtoinwriting,softwaredistributedundertheLicenseisdistributedonan"ASIS"BASIS,WITHOUTWARRANTIESORCONDITIONSOFANYKIND,eitherexpressorimplied.SeetheLicenseforthespecificlanguagegoverningpermissionsandlimitationsundertheLicense.