第1題ThefollowingisnotafeatureofPython:（）AEasytolearnBOpen-sourceandfreeCLow-levelprogramminglanguageDHighportability第2題Inthefollowingoptions,()isnotaconstant.A'python'B8.25CpythonDTrue第3題ThestatementthatisincorrectaboutPythonmemorymanagementis:AVariablesdonotneedtobedeclaredinadvance.BVariablescanbeuseddirectlywithoutcreatingandassigningthemfirst.CVariablesdonotneedtospecifyatype.DResourcescanbereleasedusingdel.第4題Inthefollowingoptions,thebooleanvalueof()isnotFalse.ANoneB0C()D1第5題Incomputers,informationprocessingandstoragearedoneusing()ABinarycodeBDecimalcodeCHexadecimalcodeDASCIIcode第6題ThewayPythonsourcecodeisexecutedis()ACompiledexecutionBParsingexecutionCDirectexecutionDCompile-as-you-goexecution第7題Whichofthefollowingstatementsisincorrect?AAllstandardobjectsexceptdictionarytypescanbeusedforBooleantesting.BThebooleanvalueofanemptystringisFalse.CThebooleanvalueofanemptylistobjectisFalse.DThebooleanvalueofanynumberobjectwithavalueof0isFalse.第8題Thefollowingidentifiersarevalid:AhelloWorldB2ndObjChello#worldD_helloworld第9題Thefollowingsymbolrepresentsasingle-linecommentinPython:().A#B//CD"“"第10題Ifa=9andb=2,whichofthefollowingoperationsisincorrect?AThevalueofa+bis11B

Thevalueofa//bis4CThevalueofa%bis1DThevalueofa**bis18第11題ThefollowingdatatypesarenotsupportedinPython:AintBcharCfloatDdicitionary第12題WhichofthefollowingstatementsaboutcomplexnumberssinPythonisincorrect?AThesyntaxforrepresentingacomplexnumberisreal+imagejBBoththerealandimaginarypartsarefloating-pointnumbersCTheimaginarypartmustbesuffixedwithjandmustbelowercaseDThemethodconjugatereturnsthecomplexconjugateofacomplexnumber第13題Whichofthefollowingstatementsaboutstringsisincorrect?ACharactersshouldbeconsideredasstringsoflength1BStringsareterminatedbythe'\0'characterCStringscanbecreatedusingeithersinglequotesordoublequotesDSpecialcharacterssuchasnewlineandcarriagereturncanbeincludedintriple-quotedstrings第14題InPythonexpressions,()canbeusedtocontroltheorderofoperations.。A()B[]C{}D

第15題Pythonlanguagebelongsto()AMachinelanguageBAssemblylanguageChigh-levellanguage.DScientificcomputinglanguage第16題()Thebuilt-infunctionopen()cancorrectlyopenafileaslongasthefilepathiscorrect.第17題()Pythonusesautomaticmemorymanagementbasedonvalues.第18題()Samevaluesarenotalwayskeptinmemoryatthesametime.第19題()Pythondoesnotallowkeywordstobeusedasvariablenames.第20題()IfcannotbeusedasavariablenameinPython.第21題()ChinesecharacterscanbeusedasvariablenamesinPython3.x.第22題()Pythonvariablenamesmuststartwithaletterorunderscoreanddistinguishbetweenuppercaseandlowercaseletters.第23題()Theadditionoperatorcanbeusedtoconcatenatestringsandgeneratenewstrings.第24題()0o12fisnotavalidoctalnumber.第25題()OxadisavalidhexadecimalnumberrepresentationinPython.第26題()314jisavalidPythonnumerictype.第27題()TherearemultiplewaystocommentcodeinPython,notjustusingthecaretsymbol.第28題()Listscannotbeusedaskeysindictionaries.第29題()Tuplescanbeusedaskeysindictionaries.第30題()Theadditionoperator+inPython3.xcanperformnumericaladdition,stringconcatenation,listandtupleconcatenation,andsetunionoperations,butitcannotmergelistsandtuplesorperformsetunionoperations.第1題Thedescriptionerrorabouttheroleofthefunctionis().AStructuringprogrammingisthemostbasicencapsulationofcode,generallyorganizingaparagraphofcodeaccordingtofunction.BThepurposeoftheencapsulationistoreuseandreducethecode.CThecodeismorebeautifulandeasytoread.DNoneoftheaboveiscorrect第2題Pythonscriptfileisextendedasthe().ApythonBpyCptDpg第3題Inthetransferoffunctionparameters,thedescriptionofthe().Apythonimplementsthesafetyvaluetransferparameter,whichreferstothevalueoftheconstantvariable(realreference)whencallingthefunction.BRealparticipationparametersarestoredintheirrespectivememoryspaceandaretwounrelatedindependentvariables.CChangethevalueoftheshapeparameterwithintheparameter,andthevalueoftherealparametergenerallydoesnotchange.DThenameoftherealparticipationparametersmustbethesame.第4題The()functionisafunctionthatdirectlyorindirectlycallsthefunctionitselfArecurrenceBclosureClambdaDanonymous第5題Usethe()functiontoreceivetheinputdatausedAaccept()Binput()Creadline()Dlogin()第6題Regardingthedescriptionoftherecursivefunction,thecorrectoneinthefollowingoptionsisthe()AThefunctionnameservesasthereturnvalueBcontainsacircularstructureCFunctionsaremorecomplexDThefunctioncontainsasecondcalltothefunction第7題InPython,regardingthedescriptionofthefunction,thecorrectoneinthefollowingoptionsisthe()AThefunctioneval()canbeusedfornumericalexpressionevaluation,suchaseval("2*3+1")BPythonNotypeisspecifiedinthefunctiondefinition,whichmeansthattheparametercanberegardedasarbitraryinthefunction!makeuseofCOnlyonereturnstatementisallowedinafunctionDPython,defandreturnarethereservedwordsthatafunctionmustuse第8題Assumingthatglobalreservedwordsarenotincludedinthefunction,forthemethodtochangetheparametervalue,thefollowingoptionerroris()AChangethevalueoftheoriginalparameterwhentheparameteristhelisttypeBWhentheparameterisacombinationtype(variableobject),changethevalueoftheoriginalparameterCWhetherthevalueoftheparameterchangesisrelatedtotheoperationofthevariableinthefunction,regardlessoftheparametertypeDWhentheparameterisanintegertype,thevalueoftheoriginalparameterisnotchanged第9題Pythonbuilt-infunction,canreturnthelengthofobjects(characters,lists,tuples,etc.)orthenumberofitems()AdescribeBintClongDlen第10題The()isnotincludedinthefunctiondefinitionformatAkeywordsdefBfunctionnameCactualparameterDfunctionbody第11題Thefollowingstatementthatisincorrectisthatthe()AWhendefiningAfunction,theparameterofafunctiondoesnotrepresentanyspecificvalue,andonlywhenafunctioncalls,aspecificvalueisassignedtotheparameter.BTherandommodulemayget100byusingthefunctionrandint(1,100)CFunctionisawayofcodemultiplexingDThefunctionmustcontainaretur第12題Thefollowingincorrectstatementofthepythonfunctionisthe()TheApythonfunctiondoesnotrequirethefunctionnameTheBpythonfunctiondoesnotrequiredtospecifyaparameterdatatypeThereturnvalueoftheCpythonfunctioncanbemultipleThekeyworddefinedbytheDpythonfunctionisthedef第13題Inthefollowingoptions,thefunctiondefinitionerroristhe()Adefvfunc(*a,b)Bdefvfunc(a,b)Cdefvfunc(a,*b)Ddefvfunc(a,b=2)第14題PythonUnsupportedparametertype()AlocationparameterBDefaultparametersCvariableDTheinvariantparameter第15題ThebasicPythonbuilt-infunctioneval()is()A.Afloating-pointnumberB.RemovethestringBPythonexpressionevaluationC.CalculatethestringChexcharacterstringDtoEfromthemostlateralquotationmarksandreturnitsvalueasFasthevalueforthePythonstatementD.ConvertanintegerGto正確答案：G第16題()ThereturnvaluetypeofaPythonfunctiondoesnotneedtobespecifiedwhendefiningthefunction.第17題()Thereturnstatementinafunctionmaynotalwaysbeexecuted.第18題()ItisnotnecessarytodeclarethetypeoffunctionparameterswhendefiningafunctioninPython.第19題()Thenumberofactualargumentspassedwhencallingafunctiondoesnotnecessarilyhavetomatchthenumberoffunctionparameters.第20題()PositionalargumentsinPythonrefertopassingargumentstoafunctionwithoutanyadditionalexplanation,withmultipleactualargumentspassedsequentiallytocorrespondingformalparameters.Thenumberandorderofactualandformalparametersmustcorrespondexactly,otherwiseanexceptionwillbethrown.第21題()DefaultvalueparametersinPythonrefertosettingdefaultvaluesforsomeformalparameterswhendefiningafunction,andifactualargumentsarenotpassedfortheformalparametersthathavedefaultvalueswhencallingthefunction,thedefaultvaluesareused;ifactualargumentsarepassed,thoseargumentsareusedinstead.第22題()Onceafunctionisdefined,itcanbecalledanywhereintheprogram.第23題()Formalparametersareoptional,meaningafunctioncanincludeparametersornot,andmultipleformalparametersareseparatedbycommas.第24題()Functionsdonotnecessarilyimprovecodeexecutionspeed.第25題()Functionnamesfollowprogrammingconventions,startingwithalowercaseletterorunderscorefollowedbyanylengthofletters,numbers,underscores,etc.toformavalidfunctionname.第26題()Thefunctionbodyconsistsofaseriesofstatementsendingwithacolon,andtheremustbesomeindentationspacebetweenlineswithinthefunctionbodytoindicatethattheybelongtothefunctionbody.第27題()Keywordargumentscannotbepassedinanyorderandcannotbeomitted.第28題()Functionscanreturnvaluesofanytypetothecaller.第29題()Afunctioncallneedstoprovidetherequiredargumentsforthefunction,andthenumberofargumentsmustmatchthenumberdeclaredinthefunctiondefinition.第30題()Ifafunctiondoesnothaveareturnstatementorthereturnstatementdoesnothaveanyreturnvalue,thereturnvalueofthefunctionisNone.Practice3第1題Whichofthethreemajorobject-orientedfeaturesdoesnotincludethisfollowing?()ApackageBpolymorphicCconstructDinheritance第2題HowdoyoudefinetheprivatemethodinthePythonclass?()AAddprivatemodificationbeforemethodBAddtwounderlined__beforemethodCdeclarethefirstparametersettingofthemethodasselfDUseonlyprivatevariablesinthemethod第3題WhichofthefollowingstatementsistrueabouttheclassandinstancepropertiesofPython?()AClasspropertiescanbeaccessedbytheclassnameorinstancename.BClasspropertiescanbemodifiedbyeithertheclassnameorthepropertyname.CInstancepropertiescanbeaccessedthroughtheclassnameorinstancename.DInstancepropertiescanbemodifiedbytheclassnameorinstancename.第4題Whichofthefollowingcodedefinesthenameclasspropertycorrectly?()AclassMeeting:name="cqtbi"BclassMeeting:def__init__(self,name):=name;CclassMeeting:def__init__(self,id):name="cqtbi";DclassMeeting:="cqtbi"第5題PythonWhichkeywordisusedintheclassdeconstructionmethodinobject-orientedprogramming?()A__del__B__finish__C__delete__D__finalize__第6題Isthistherightwaytointroducethecustommodule?()Afrom

my_moduleimport

Studenttom=

my_module.Student('001',

'tom')

Bfrom

my_moduleimport

Studenttom=

Student('001',

'tom')

Cimport

my_moduletom=

Student('001',

'tom')Dimport

my_module.Studenttom=

Student('001',

'tom')第7題WhichofthefollowingstatementsiswrongabouttheparametersofthePythonfunction?()APositionparameterscannotbepassedmoreorless.BParameterswiththedefaultvaluesarethekeywordparameters.CTheindefinitelengthparametersshouldbeplacedattheendoftheparameterlist.DThedefaultparametersmustbeplacedbehindthepositionparameters.第8題Whichofthefollowinglambdaexpressionscorrectlydefinesanadditionfunction?Alambda

x,y:x+yBlambda(x,

y):

x+

yClambda

x,

y:

return

x+

yDlambda

x,

y=x+

y第9題Whichofthefollowingstandardmodulescanoperateonthefile?()AosBtimeCrandomDre第10題WhichofthefollowingregularexpressionsmatchestheIDcardnumber?()A\d[17]{\d|x|X}B\d{17}[\d|x|X]C\b[17]{\b|x|X}DCan't第11題IntheJavalanguage,0.6321isdataoftypefloat.()第12題re.searchThemethodscanstheentirestringandreturnsallsuccessfulmatches.()第13題Thederivedclassautomaticallycallstheconstructorofthebaseclass.()第14題PythonTopreferentiallyfindthecorrespondingmethodinthebaseclass,thebaseclassisnotfoundinthederivedclass.()第15題Theformalparameterofafunctionistheparameterdeclaredinparentheseswhendefiningafunction.()第16題Usingkeywordparameters,youcancallthemwithoutpassingthesequence.()第17題Whenyouusetheindefinitelengthparameter*argsintheparameterlist,theparametersareautomaticallyorganizedintoadictionaryincoming.()第18題ThePythonmoduleisessentiallyaPythonscriptfilethatcancontainvariables,functions,andclasses.()第19題Generatorsarespecialiteratorsthatexecutefromscratchoneverycall.()第20題TodefineafunctioninPython,youmustendwithreturnasthefunction.()Practice4第1題Whichofthefollowingcommandsistoinstallthird-partylibrariesinaPythondevelopmentenvironment?()AsetupByuminstallCpipinstallDimport第2題Whenusingawebcrawlertocrawldata,whatdoestheserverreturn503mean?()APagenotfoundBDeniedaccesstoCServerErrorDPageredirection第3題Inordertoallowthecrawlertoaccesstheserver,whichofthefollowingrequestheadsisusuallyrequired?()AAcceptBConnectionCUser-AgentDReferer第4題Ifyouneedtoopenafiletoreadandwrite,andifthefiledoesnotexist,whichreadandwritemodeisused?()ArBr+CwDw+第5題WhatistheXPATHsyntaxforgettingthenameofthedog(karl)oftypeHuskycorrectly,forthefollowingHTML?（B）<html>

<animal>

<dog

type="Husky">karl</dog>

<dog

type="Bulldog">momo</dog>

</animal>

</html>A//dog/@type="Husky"/textB//dog[@type="Husky"]/text()C//dog/@type="Husky"D/dog/@type="Husky"/text()第6題Whichofthefollowingerrorsdoestheserverreturn,usuallytriggeringthebackcrawlmechanism?()A301B403C503D200第7題Usingthecrawlertocrawltheserverdata,whichofthefollowingdocumentsshouldfollow?()Ahost.txtBrobots.txtCrule.txtDallow.txt第8題InPython,whichfunctionofpymyslisusedtoconnecttotheMySQLdatabase?()AopenBconnectCcreateDget第9題Whichofthefollowingthird-partymodulesiscommonlyusedforPythondataanalysis?()APandas

BScrapyCBeautifulSoupDlxml第10題WhenyouneedtowriteChinesetoafile,whichofthefollowingparametersisusuallyaddedwhenopeningthefile?()AenforceBencodingCdecodeDlocalization第11題Thesuccessofwebscrapingcanbedeterminedbycheckingthecodeattributeoftheresponseobject.()第12題InPython,theopenfunctionisusedtoopenfiles,andthefilemodesusuallyinclude"r","w","a","x",etc.()第13題Usingthe"r+"modetoopenafilemeansthatyoucanreadfromitaswellasappendcontent.(()第14題CSVfilestypicallyusethetabcharacter\ttoseparatedifferentfieldsinarow.()第15題Bydefault,Pythonopensfilesinbinaryformat.()第16題Whenafileisopenedusingthewithkeyword,youdonotneedtomanuallycalltheclosemethod.()第17題XMLdocumentswitherrorscannotbeparsedusinglxml.()第18題Whenthecontentofafileisverylarge,weshouldusetheread()methodtoreadit.()第19題Whenwritingtoafileusingthefile.write()function,youneedtomanuallyaddanewlinecharacterattheendoftheline.()第20題Usingbuilt-instandardlibrariesinPythondoesnotrequireimportingthem.()Practice5第1題InregularexpressionmatchinginPython,thedefaultmodeisgreedy.

()第2題Lambdaexpressionsareoftenusedtowritefunctionsthatneedtobecalledrepeatedly.

(

)第3題Thekeyof3Ddynamicfacerecognitiontechnologyliesinusinghigh-precision3Dfull-facecameratoobtainthethree-dimensionalgeometricfeaturesandblack-and-whitetexturefeaturesoftheface.(

)第4題Errorsencounteredwhenwritingprogramscanberoughlydividedintotwocategories:syntaxerrorsandruntimeerrors.()第5題InXPath,anXMLdocumentistreatedasanodetree,andtherootofthetreeiscalledtherootnode.

()第6題

PressF10onthebrowserpagetoopendevelopermode.

(

)第7題Therobotsprotocolisusedtotellwebsiteshowtoidentifyvisitorsaseitherhumanorrobot(application).()第8題Thevalueoftheexpressionlen(range(1,9))is9.

(

)第9題InPythonprogramming,theexceptionsthatarethrownbyyourselfarecalledcustomexceptions.

()第1