第1題第2題第3題第4題Fillintheblanks:Whichshortcutkeycanbeusedfordebuggingandrunningresults?____正確答案：:F5第5題ThebasicunitofClanguageprogramis()AProgramlineBStatementCFunctionDCharacter第6題ThethreebasicstructuresthatmakeupaClanguageprogramare().ASequencestructure,transferstructure,recursivestructureBSequencestructure,nestedstructure,recursivestructureCSequencestructure,selectstructure,loopstructureDSelectstructure,loopstructure,nestedstructure第7題ThefollowingstatementsaredescriptionsofcommentsinClanguage,ofwhichtheincorrectoneis()AParagraphcommentsmustbeenclosedin/*and*/BTherecanbenospacesbetweenthecommentcharacter/and*CRegardlessofthecontentofthecomment,itwillbeignoredwhencompilingtheprogramDCommentstatementcanonlybelocatedafteracertainstatement第8題Thebasiccharacteristicsofthealgorithmarevalidity,certaintyand()ATimecharacteristicsBSpatialcharacteristicsCStepbystepDInfinity第9題Programswrittenbyusersinhigh-levelcomputerlanguages,usuallycalled()ASourcecodeBAssemblerCBinarycodeprogramDTargetprogram第10題Theonethatcanconverthigh-levellanguagesourceprogramintotargetprogramis()ADebugprogramBInterpreterCCompilerDEditprogram第11題InthefollowingdescriptionoffeaturesofClanguage,theincorrectoneis()AClanguagehasthedualcharacteristicsofhigh-levellanguageandlow-levellanguage,highexecutionefficiencyBClanguagecanbeusedtowriteapplicationprogramsandsystemsoftwareCClanguagehaspoorportabilityDClanguageisastructuralmodularprogramminglanguage第12題Computerlanguagehasgonethroughfromlowtohighlevel,accordingtoitsdevelopmentprocesscanbedividedinto()AMachinelanguage,assemblylanguage,process-orientedlanguageBMachinelanguage,assemblylanguage,object-orientedlanguageCMachinelanguage,assemblylanguage,high-levellanguageDMachinelanguage,process-orientedlanguage,high-levellanguage第13題ThevonNeumannsystemasthebasicstructureofmoderncomputersincludes()AInput,storage,operation,controlandoutputBInput,datastorage,dataconversionandoutputCInput,processcontrolandoutputDInput,datacalculation,datatransferandoutput第14題Thecomputerprograminstructionmustbe()AMachinelanguageBAssemblylanguageCHigh-levellanguageDAlloftheaboveoptionsarecorrect第1題第2題Thewrongstatementinthefollowingis().

AThestaticvariabledefinedinaCprogramfunctionwithaninitialvalueisassignedaninitialvalueeverytimethefunctioniscalledBInthesamefunctionoftheCprogram,variablescanbedefinedineachcompoundstatement,andtheirscopeislimitedtothiscompoundstatementCAutovariablesdefinedinCprogramfunctionswillnotbeautomaticallyassignedacertaininitialvaluebythesystemDTheformalparametersofCprogramfunctionscannotbedescribedasstaticvariables第3題Executethestatementprintf("”,2);Youwillgetanerrormessage.()A%dB%oC%xD%f第4題Thereisaninputstatement:scanf("a=%d,b=%d,c=%d",&a,&b,&c);Tomakethevalueofvariablea1,b3,c2,thecorrectformofinputtingdatafromthekeyboardis()A132B1,3,2Ca=1,b=3,c=2Da=1b=3c=2第5題Known:intx,y;floatz;thentheincorrectinputstatementinthefollowingis()Ascanf("%d,%d,%f",&x,&y,&z);Bscanf("%d%d%f",&x,&y,&z);Cscanf("%d%d%f",&x,&y,&z);Dscanf("%d%d%6.2f",&x,&y,&z);第6題Thefollowingstoragetypedescriptionthatallocatesmemoryforthistypeofvariableonlywheninuseis()AautoandstaticBautoandregisterCregisterandstaticDexternandregister第7題InClanguage,thedefaultstoragecategoryofformalparametersis().AautoBstaticCregisterDextern第8題TheincorrectdescriptionaboutClanguageconstantinthefollowingis().ATheso-calledconstantreferstotheamountwhosevaluecannotbechangedduringtherunningoftheprogramBConstantsaredividedintointegerconstants,realconstants,characterconstantsandstringconstantsCConstantscanbedividedintonumericconstantsandnon-numericconstantsDVariablesthatarefrequentlyusedcanbedefinedasconstants第9題Thestringconstantinthefollowingdatais().A'A'B"house"CHowdoyoudo.D'$abc'第10題RegardingtheClanguageidentifier,theincorrectdescriptioninthefollowingis().AIdentifierscanbecomposedofallnumbersBIdentifierscanbecomposedofallunderscoresCIdentifierscanbecomposedofalllowercaselettersDIdentifierscanbecomposedofalluppercaseletters第11題TheincorrectClanguageidentifierinthefollowingis().AAB1Ba2_bC_ab3D4ab第12題TheoneinthefollowingthatcanbeusedasClanguageassignmentstatementsis().Ax=3,y=5Ba=b=6Ci+=1;Dy=int(x)第13題Thelegallydefinedvariableinthefollowingis()Ashort_a=1-.le-1;Bdoubleb=1+5e2.5;Clongdo=0xfdaL;Dfloat2_and=1-e-3;第14題Whichofthefollowingstatementsiscorrect()AIntheClanguage,allvariablesmustbeinitializedwhentheyaredefined.BAvariabledefinitionstatementcannotdefinemultiplevariablesatthesametime.CThestoragespaceallocatedfordifferenttypesofvariablesisthesame.DconstconstantcanonlybeassignedatthetimeofdefinitionChapter3SelfTest第1題第2題Fillintheblanks:TheClanguageprovidesthreelogicaloperators,theoperatorwiththehighestpriorityis____正確答案：:!第3題Ifthereisadefinitionstatement:intk1=10,k2=20;,afterexecutingtheexpression(k1=k1>k2)&&(k2=k2>k1),thevalues??ofk1andk2arerespectively().A0and1B0and20C10and1D10and20第4題Setintx=11;thevalueoftheexpression(x++*1/3)is()A3B4C11D12第5題ThefollowingprocedureMain(){inty,x=3,z=1;y=(++x)+(++x);printf("%d%d\n",(),z+2);}Theoutputoftheprogramis().A53B103C73D63第6題Thelowestprecedenceofthefollowingoperatorsis().?A&&B|C||D&第7題Setintx=10,y,z;afterexecutingy=z=x++;x=y==z,thevalueofthevariablexis()A0B1C10D11第8題Amongthefollowingoperators,theoperatorwiththehighestpriorityis()A||B%C!D==第9題Ifx=3,y=2,z=1,calculatethevalueofzinthefollowingexpression()z+=(x<y?x++:y++)A1B2C3D4第10題Setinti,j=5;executethestatementi=(++j)+(++j);thevalueofiis()A10B12C13D14Chapter4SelfTest第1題Theoutputofthefollowingprogramis()

main(){intx=2,y=-1,z=2;if(x<y)

if(y<0)z=0;

elsez=z+1;printf(“%d\n”,z);}A2B3C0DNoneoftheabove第2題第3題Judge:IntheswitchstatementofClanguage,onlyaconstantoraconstantexpressioncanbeplacedaftercase.()第4題Judge:gotostatementisalsocalledunconditionaltransitionstatement,whichcanrealizeprogramjumpwithinthefunction,butcannotcrossthefunction.()第5題Judge:Gotostatementcanbeveryflexibletoachieveprogramjump.Itisbesttouseasmuchaspossibleintheprogram.()第6題#includemain(){intx;scanf(“%d”,&x);if(x<=3)elseif(x!=10)printf(“%d\n”,x);}Whentheprogramisrunning,inwhichrangewilltheinputvaluehaveanoutputresult?()AIntegerslessthan3BIntegersnotgreaterthan10CIntegersgreaterthan3orequalto10DIntegersgreaterthan3andnotequalto10第7題TheruleofClanguagetonestifstatementis:elseisalwayspairswith().AthenearestifbeforeitBthefirstifCtheifwiththesameindentationpositionDThelastandunpairedif第8題Themostsuitablestatementtosolvetheselectstructure"x>0,theny=1;otherwisey=0"is().AswitchBNestedif-elseCif-elseDifChapter5SelfTest第1題第2題Therunningresultofthefollowingprogramsegmentis().inta=1,b=2,c=3,t;while(a<b<c){t=a;a=b;b=t;c--;}printf("＂%d,%d,%d"＂,a,b,c);A1,2,0B2,1,0C1,2,1D2,1,1第3題Theexecutiontimesofthestatementmarkedwith/**/are().inty,i;for(i=0;i<20;i++){if(i%2==0)continue;y+=i;/**/}A20B19C10D9第4題Afterthefollowingstatementisexecuted,thevalueofvariablekis().intk=1;while(k++<10);A10B11C9DInfiniteloop,variablevalue第5題Thefunctionofusingthebreakstatementintheloopis().AMaketheexecutionoftheprogramjumpoutoftheloopwherethebreakisBEndtheprogramexecutionCJumpoutofallloopscontainingthisbreakstatementDTerminatethiscycleandcontinuetothenextcycle第6題Thenumberofcyclesinthefollowingprogrampieceis().for(i=2;i==0;)printf(""%d"",i--);AUnlimitedtimesB0timeC1timeD2times第7題Thereisthefollowingprogramsegmentintx=3;do{printf("%d",x-=2);}while(!(--x));Theoutputresultis().A1B30C1-2DEndlessloop第8題Theincorrectdescriptioninthefollowingis().AWhenusingwhileanddo-whileloops,theinitializationofloopvariablesshouldbecompletedbeforetheloopstatementBThewhileloopistofirstjudgetheexpressionandthenexecutetheloopbodystatementCBothdo-whileandforloopsexecutetheloopbodystatementfirstandthenjudgetheexpressionDTheloopbodyinfor,while,do-whileloopscanallbecomposedofemptystatements第9題Regardingthisprogramsegment,thecorrectoneinthefollowingdescriptionis()intk=10;while(k=0)k=k-1;AThewhileloopisexecuted10timesBLoopisinfiniteloopCTheloopbodystatementisnotexecutedonceDTheloopbodystatementisexecutedonceChapter6SelfTest第1題第2題Iftheparameterisavariableofbasicdatatypewhenthefunctioniscalled,thecorrectoneinthefollowingis()AActualparametersandcorrespondingformalparameterssharestorageunitBThestorageunitissharedonlywhenactualparametersandcorrespondingformalparametershavethesamename.CActualparametersandcorrespondingformalparameterstakeupdifferentstorageunitsDAftertheactualparameterpassesthedatatotheformalparameter,immediatelyreleasethepreviouslyoccupiedstorageunit第3題Whichofthefollowingstatementsiscorrect()AThescopeofglobalvariablesmustbelargerthanthescopeoflocalvariablesBThelifetimeofstatictypevariablesisthroughtheentireprogramCFunctionparametersareglobalvariablesDTheinitialvalues??ofautovariablesandstaticvariablesthatarenotassignedinitialvalues??inthedefinitionstatementarerandomvalues第4題Theactualparametersofthecallingfunctionandtheformalparametersofthecalledfunctionshouldhavethefollowingrelationship().AOnlythenumberofactualparametersandformalparametersareequalBOnlytheorderofformalparametersandactualparametersarethesameCOnlyrequirethattheactualandformalparametershavethesamedatatypeDAlltheabovethreepointsarerequired第5題Whenthefunctioniscalled,whentheactualparametersandformalparametersaresimplevariables,theprocessofpassingbetweenthemis()ATheactualparameterpassesitsaddresstotheformalparameterandreleasesthepreviouslyoccupiedstorageunitBTheactualparameterpassesitsaddresstotheformalparameter,andtheformalparameterreturnsitsaddresstotheactualparameterattheendofthecallCTheactualparameterpassesitsvaluetotheformalparameter,andtheformalparameterreturnsitsvaluetotheactualparameterattheendofthecallDTheactualparameterpassesitsvaluetotheformalparameter,andtheformalparameterdoesnotreturnitsvaluetotheactualparameterattheendofthecall第6題Ifavariableisdefinedinacompoundstatementinafunction,thevariableis()AonlyvalidinthecompoundstatementBvalidinthisfunctionCvalidwithinthescopeofthisprocedureDanillegalvariable第7題ForfunctionsinCprograms,whichofthefollowingstatementsiscorrect?()AFunctiondefinitionscannotbenested,butfunctioncallscanbenested.BFunctiondefinitionscanbenested,butfunctioncallscannotbenested.CFunctiondefinitionsandcallscannotbenested.DFunctiondefinitionsandcallscanbenested第8題Thecorrectdefinitionformoffunctioninthefollowingis()

Adoublefun(intx,inty)Bdoublefun(intx;inty)Cdoublefun(intxinty)Ddoublefun(intx,y)第9題Thetypeofthereturnvalueofafunctionisdeterminedby()Athetypeofexpressioninthereturnstatement;BthefunctiontypespecifiedwhenthefunctionwasdefinedCthetypeofthefunctionthatcallsthefunctionDthetemporarytypewhenthefunctioniscalled第10題InClanguage,whichiswronginthefollowingstatement().AFunctiondefinitioncanbedividedintotwoparts:functiondescriptionpartandfunctionbodyBThemainfunctioncancallanynon-mainfunctionCAnynon-mainfunctioncancallanyothernon-mainfunctionDTheprogramcanstartexecutionfromanyfunction第11題Thecorrectoneofthepurposesofcreatingafunctioninthefollowingstatementis()AImproveprogramexecutionefficiencyBImproveprogramreadabilityCReducethelengthoftheprogramDReducethememoryoccupiedbyprogramfilesChapter7SelfTest第1題第2題Known:chara[3][10]={"BeiJing","ShangHai","TianJin"},*pa=a;thestatementthatcannotcorrectlydisplaythestring"ShangHai"is.()Aprintf("%s",a+1);Bprintf("%s",*(a+1));Cprintf("%s",*a+1);Dprintf("%s",&a[1][0]);第3題Ifthearraynameisusedastheactualparameterofthefunctioncall,whatispassedtotheformalparameteris().AThefirstaddressofthearrayBThevalueofthefirstelementofthearrayCThevalueofallelementsinthearrayDThenumberofarrayelements第4題Forthestatementint*px[10],whichstatementiscorrect().Apxisapointer,pointingtoanarray,theelementsofthearrayareintegers.Bpxisanarray,andeachelementofthearrayisapointertoaninteger.CBothAandBarewrong,butitisthecorrectstatementinClanguage.DClanguagedoesnotallowsuchstatements.第5題Ifthetwo-dimensionalarrayahasmrowsandncolumns,theformulaforcalculatingthepositionofanyelementa[][]inthearrayis()Ai*m+jBj*n+iCi*n+jDj*m+n第6題Ifthepointerpxisanullpointer,then().ApxpointsindefinitelyBthevalueofpxiszeroCthegoalofpxiszeroDpx'saddressiszero第7題Thefollowingisastatementtoinitializeapointer:int*px=&a;Thenameofthepointervariableshouldbe().A*pzBaCpxD&a第8題Theincorrectoneinthefollowingarraydefinitionis()?Ainta[2][3];Bintb[][3]={0,1,2,3};Cintc[100][100]={0};Dintd[3][]={{1,2},{1,2,3},{1,2,3,4}};第9題Ifthereareinstructions:inta[][3]={1,2,3,4,5,6,7};thenthesizeofthefirstdimensionofarrayais()?A2B3C4DNodefinitevalue第10題inti,j,a[2][3];Accordingtothearrangementorderoftheelementsofthearrayainthememory,theonethatcan’tstorenumber1,2,3,4,5,6inarrayais()Afor(i=0;i<2;i++)for(j=0;j<3;j++)a[i][j]=i*3+j+1;Bfor(i=0;i<3;i++)for(j=0;j<2;j++)a[j][i]=j*3+i+1;Cfor(i=0;i<6;i++)a[i/3][i%3]=i+1;Dfor(i=1;i<=6;i++)a[i][i]=i;第11題Whichofthefollowingisthecorrectdescriptionofthetwo-dimensionalarraya?()Ainta[3][]Bfloata(3,4)Cdoublea[1][4]Dfloata(3)(4)第12題Assumingthattheinttypevariableoccupiesatwo-bytestorageunit,ifdefiningintx[10]={0,2,4};thenumberofbytesoccupiedbythearrayxinthememoryis().A3B6C10D20第13題Ifthereisastatement:inta[10];thenthecorrectreferencetotheelementsoftheaarrayis().Aa[10]Ba[-5]Ca(5)Da[5]第14題Theincorrectdefinitionstatementinthefollowingis()Adoublex[5]={2.0,4.0,6.0,8.0.10.0};Binty[5]={0,1,3,5,7,9};Ccharc1[]={'1','2','3','4','5'};Dcharc2[]={'\x10','\xa','\x8'};Chapter8SelfTest第1題第2題Thefunctionofstrcatistoconnecttwostrings.()第3題Sincestringsareverycommonlyusedinprogramming,alargenumberoffunctionsforstringoperationsarealsoprovidedinthestandardlibrary,andtheheaderfilestring.hneedstobeincluded.()第4題Therearetwomethodsforstringinput,namelycharacter-by-characterinputandstringinputasawhole.()第5題Whichofthefollowingstatementsiscorrect?()AWheninitializingthearray,youcanonlyassigninitialvalues??toafewelementsBNumericalarrayscannotbeassignedasawholeusingassignmentstatements,butcharacterarrayscanbeassignedastringasawholeusingassignmentstatementsCWhenacharacterarrayisusedtostoreastring,itcanstoreasmanyvalidcharactersasthelengthofthearrayDNoneoftheabovestatements第6題Witharraydefinition:chararray[]=”China”;thenthestoragespaceoccupiedbyarrayis()A4bytesB5bytesC6bytesD10bytes第7題Ifthelengthofastringisn,thelengthofthecharacterarraystoringitisatleast()AnBn+1C(n+1)*2Dn+2第8題Thestatementcharstr[20];indicatesthatstrisacharacterstringandcanrepresentatmost().A20charactersB19charactersC18charactersD21characters第9題Thecorrectdefinitionandassignmentofthecharacterarraystrinthefollowingis()Acharstr[10];str={"China!"};Bcharstr[]={"China!"};Ccharstr[10];strcpy(str,"abcdefghijkI");Dcharstr[10]={"abcdefghijkI"}第10題Inthefollowingdefinitionstatement,thewrongoneis()Ainta[]={1,2};Bchara[]={"test"};Cchars[10]={"test"};Dintn=5,a[n];Chapter9SelfTest第1題第2題enumweek{Mon,Tues,Wed,Thurs,Fri,Sat,Sun};Canre-assignMonthroughthestatementMon=1;inthefollowingcode.()第3題Theincorrectdescriptionoftypedefinthefollowingis().AUsetypedeftoaddnewtypesBtypedefjustusesanewnametorepresenttheexistingtypeCtypedefcanbeusedtospecifyanewnameforvarioustypes,butitcannotbeusedtospecifyanewnameforavariableDUsingtypedeftospecifyanewnameforthetypecanusuallyincreasethereadabilityoftheprogram第4題Thefollowingoptionsattempttoexplainanewtypename,thecorrectoneis().Atypedefvlint;Btypedefv2=int;Ctypedefintv3;Dtypedefv4:int;第5題Whichofthefollowingdescriptionsoftypedefisincorrect?()AUsetypedeftodefinevarioustypenames,butnottodefinevariablesBUsetypedeftoaddnewtypesCUsetypedeftorepresentanexistingtypewithanewidentifierDUsingtypedefisconducivetothegeneralizationandportabilityoftheprogram第6題Theuniontypeatanygivenmoment().AAllmembersalwaysresideinmemoryBOnlyonememberresidesinmemoryCSomemembersresideinmemoryDNomembersresideinmemory第7題Whenexplainingaunionvariable,thestoragespaceallocatedtoitbythesystemis().AStoragespacerequiredbythefirstmemberoftheunionBStoragespacerequiredbythelastmemberoftheunionCStoragespacerequiredbythememberoccupyingthelargeststoragespaceintheunionDThesumofstoragespacerequiredbyallmembersintheunion第8題Thedatatypeofthemembersoftheunion().AisthesameBcanbedifferentorthesameChasthesamelengthDisastructvariable第9題Withthefollowingdescriptivesentencesstructex{intx;floaty;charz;}example;theincorrectstatementisinthefollowingis().AstructisthekeywordofstructuretypeBexampleisthestructtypenameCx,y,zareallstructmembernamesDstructexisthestructtype第10題Whendefiningastructurevariable,thememoryallocatedtoitbythesystemis()AThesumofmemoryrequiredbyeachmemberBTheamountofmemoryrequiredforthefirstmemberofthestructureCThecapacityrequiredbythememberwiththelargestamountofmemoryDTheamountofmemoryrequiredforthelastmemberofthestructureChapter10SelfTest第1題第2題Bymodifyingthesuffixname,theessentialcontentofthefilecanbeaffected.()第3題Thefunctiontocheckwhetherthefilespecifiedbyfpiswrongduringreadingandwritingis()?Afeof()Bferror()Cclearerr(fp)Dferror(fp)第4題Openthetextfilenamedabc.txtintheusersubdirectoryonDiskAtoreadandwrite.Thefollowingfunctioncallthatmeetsthisrequirementis().Afopen("A:\user\abc.txt","r")Bfopen("A:\user\abc.txt","r+")Cfopen("A:\user\abc.txt","rb")Dfopen("A:\userl\abc.txt","w")第5題ThefunctionoftheClanguagestandardlibraryfunctionfread(fd,buffer,n)is().AReaddatawithalengthofnomorethannbytesfromthefilefdandsendittothememoryareapointedtobybufferBReaddatawithalengthofnomorethann-1bytesfromthefilefdandsendittothememoryareapointedtobybufferCReadfromthefilefdwithalengthofnomorethanncharactersandsendittothememoryareapointedtobybufferDReadthelengthofnotmorethann-1charactersfromthefilefdandsendittothememoryareapointedtobybuffer第6題Iffpisapointertoafile,andtheendofthefilehasbeenread,thereturnvalueofthelibraryfunctionfeof()is()AEOFB-1CNon-zerovalueDNULL第7題Whatisthefunctionofrewind?()AReturnthepositionpointertothebeginningofthefileBPointthelocationpointertothespecificlocationrequiredinthefileCMakethepositionpointerpointtotheendofthefileDAutomaticallymovethepositionpointertothenextcharacterposition第8題Thecallingformofknownfunctions:fread(buffer,size,count,fp);whatdoesbufferrepresent?()AAnintegervariable,representingthetotalnumberofdataitemstobereadBAfilepointer,pointingtothefiletobereadCApointertothestorageaddressofthedatatobereadDAstorageareatostorethedataitemstoberead第9題Ifyouneedtoopenanexistingnon-emptyfile"Demo"formodification,thecorrectoptionis()Afp=fopen("Demo","r");Bfp=fopen("Demo","ab+");Cfp=fopen("Demo","w+");Dfp=fopen("Demo","r+");第10題Ifyouwanttoopenanewbinaryfilewiththefopenfunction,thefilemustbebothreadableandwritable.Thenwhatshouldbethestringoffileopeningmethod?()A"a+b"B"wb+"C"rb+"D"ab"Chapter11SelfTest第1題第2題Judge:Thefunctionofsettingtheheadnodeofthelinkedlististosavesomeinformationabouttheentirelinkedlist,butthemainfunctionistosavethepointerofthefirstnodeofthelinkedlistthroughit.()第3題Fordynamicallyallocatedmemory,afteruse,besuretousefreefunctiontoreleaseit,otherwiseitdoesnotconformtoth